Minor firefox DoS - semi silently polluting ~/Downloads with files (part 2)

Posted by Georgi Guninski on Jan 18

Minor firefox DoS - semi silently polluting ~/Downloads with files (part 2)

Tested on: firefox 121 and chrome 120 on GNU/linux

Date: Thu Jan 18 08:38:28 AM UTC 2024

This is barely a DoS, but since it might affect Chrome too we decided
to disclose it.

If firefox user visits a specially crafted page, then firefox
may create many files in `~/Downloads`,
The user is notified about this in a small dialog, but there is
no option to stop the...

Re: ODR violation in Redis Raft

Posted by Jeffrey Walton on Jan 18

I fail to see how a One Definition Rule (ODR) violation results in a
Remote Code Execution.

Can you share your PoC, please?

Jeff

Infinite loop leading to buffer overflow in TinyDTLS

Posted by Meng Ruijie on Jan 17

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. An infinite loop bug exists during the handling of a
ClientHello handshake message. This bug allows remote attackers to cause a denial of service by sending a malformed
ClientHello handshake message with an odd length of cipher suites, which triggers an infinite loop (consuming all
resources) and a buffer over-read that can disclose sensitive...

Assertion failure in check_certificate_request() of TinyDTLS

Posted by Meng Ruijie on Jan 17

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. An assertion failure in check_certificate_request()
causes the server to exit unexpectedly (a denial of service).

[VulnerabilityType Other]
Improper Handling of exception conditions

[Vendor of Product]
https://github.com/contiki-ng/tinydtls

[Affected Product Code Base]
contiki-ng tinydtls - master branch 53a0d97

[Affected Component]
the service of dtls...

Misues same epoch number within TCP lifetime in TinyDTLS

Posted by Meng Ruijie on Jan 17

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. DTLS servers allow remote attackers to reuse the
same epoch number within two times the TCP maximum segment lifetime, which is prohibited in RFC6347. This vulnerability
allows remote attackers to obtain sensitive application (data of connected clients).

[VulnerabilityType Other]
Improper Handling of exception conditions

[Vendor of Product]...

Buffer over-read in TinyDTLS

Posted by Meng Ruijie on Jan 17

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. Incorrect handling of over-large packets in
dtls_ccm_decrypt_message() causes a buffer over-read that can expose sensitive information.

[Vulnerability Type]
Buffer Overflow

[Vendor of Product]
https://github.com/contiki-ng/tinydtls

[Affected Product Code Base]
contiki-ng tinydtls - master branch 53a0d97

[Affected Component]
the service of dtls servers...

Buffer over-read in dtls_sha256_update of TinyDTLS

Posted by Meng Ruijie on Jan 17

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. A buffer over-read exists in the dtls_sha256_update
function. This bug allows remote attackers to cause a denial of service (crash) and possibly read sensitive information
by sending a malformed packet with an over-large fragment length field, due to servers incorrectly handling malformed
packets.

[Vulnerability Type]
Buffer Overflow

[Vendor of...

Legends of IdleOn - I Reject Your RNG And Substitute My Own

Posted by Soatok Dreamseeker on Jan 17

Hello Full Disclosure mailing list!

Legends of IdleOn is a popular free-to-play game on Android, iOS, Steam,
and Web. While playing around with it last year, I got curious and noticed
a trivial way to manipulate the random number generator.

After six months of radio silence from the developer, including asking the
Discord moderators for help getting the developer's attention, I've decided
to publish this publicly:...

ODR violation in Redis Raft

Posted by Meng Ruijie on Jan 17

[Suggested description]
Redis raft master-1b8bd86 to master-7b46079 was discovered to contain an ODR violation via the component
hiredisAllocFns at /opt/fs/redisraft/deps/hiredis/alloc.c.

[VulnerabilityType Other]
AddressSanitizer: odr-violation

[Vendor of Product]
Redis

[Affected Product Code Base]
raft - master-1b8bd86 to master-7b46079

[Affected Component]
affected executable

[Attack Type]
Remote

[Impact Code execution]
true

[Impact...

Incorrect handshake in TinyDTLS

Posted by Meng Ruijie on Jan 17

About CVE-2021-42141:

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with
different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause
denial of service.

[VulnerabilityType Other]
Improper Handling of exception conditions

[Vendor of Product]
https://github.com/contiki-ng/tinydtls

[Affected Product Code...

Mishandle epoch number in TinyDTLS servers

Posted by Meng Ruijie on Jan 17

About CVE-2021-42142:

[Suggested description]
An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. DTLS servers mishandle the early use of a large
epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.

[VulnerabilityType Other]
Improper Handling of exception conditions

[Vendor of Product]
https://github.com/contiki-ng/tinydtls

[Affected Product Code Base]...

Re: cpio privilege escalation vulnerability via setuid files in cpio archive

Posted by Harry Sintonen via Fulldisclosure on Jan 14

Tar does set setuid bit, but tar is not vulnerable. This is not an attack.

The user is responsible for extracting the archives to secure location
and not letting other users access to insecure setuid binaries. See:

https://www.gnu.org/software/tar/manual/html_section/Security.html#Security-rules-of-thumb

These same security considerations also apply to cpio.

Backdoor.Win32 Carbanak (Anunak) / Named Pipe Null DACL

Posted by malvuln on Jan 14

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2024
Original source:
https://malvuln.com/advisory/b8e1e5b832e5947f41fd6ae6ef6d09a1.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln

Threat: Backdoor.Win32 Carbanak (Anunak)
Vulnerability: Named Pipe Null DACL
Family: Carbanak
Type: PE32
MD5: b8e1e5b832e5947f41fd6ae6ef6d09a1
Vuln ID: MVID-2024-0667
Dropped files: AlhEXlUJ.exe, AlhEXlUJbVpfX1EMVw.bin
Disclosure: 01/09/2024...

Re: cpio privilege escalation vulnerability via setuid files in cpio archive

Posted by Harry Sintonen via Fulldisclosure on Jan 14

So does for example tar. The same rules that apply to tar also apply to
cpio:

"Extract from an untrusted archive only into an otherwise-empty directory.
This directory and its parent should be accessible only to trusted users."

This is a user error, not a vulnerability in cpio.

CyberDanube Security Research 20240109-0 | Multiple Vulnerabilities in JetNet Series

Posted by Thomas Weber via Fulldisclosure on Jan 14

CyberDanube Security Research 20240109-0
-------------------------------------------------------------------------------
title| Multiple Vulnerabilities
product| Korenix JetNet Series
vulnerable version| See "Vulnerable versions"
fixed version| -
CVE number| CVE-2023-5376, CVE-2023-5347
impact| High
homepage| https://www.korenix.com/
found|...

Re: cpio privilege escalation vulnerability via setuid files in cpio archive

Posted by Georgi Guninski on Jan 14

Hi, thanks for the feedback :)

Which version of tar is vulnerable to this attack? I am pretty sure
this was fixed in tar and zip `long long` ago.

tar and zip on fedora 38 are definitely not vulnerable, they clear
the setuid bit.

I continue to suspect this is vulnerability because:
1. There is directory traversal protection for untrusted archives
2. tar and zip and not vulnerable

bash script for setuid files in tar:

#!/bin/bash

mkdir -p...

Re: cpio privilege escalation vulnerability via setuid files in cpio archive

Posted by fulldisclosure on Jan 14

Am 08.01.24 um 10:25 schrieb Georgi Guninski:

It's not a vulnerability, as

a) cpio archives must archive that flag as cpio is part of RPM packages
and those
must be able to contain setuid flags. Otherwise, you would need to add
chmod u+s  cmds to any %POST
section. Breaking this, would invalidate so many existing packages =>
won't happen

note: initramfs makes use of cpio as well, but setuid is not needed
here, as it's...

Re: [SBA-ADV-20220120-01] MOKOSmart MKGW1 Gateway Improper Session Management

Posted by SBA - Advisory via Fulldisclosure on Jan 14

MITRE assigned CVE-2023-51059 for this issue.

Ubuntu Security Notice USN-6571-1

Ubuntu Security Notice 6571-1 - Youssef Rebahi-Gilbert discovered that Monit did not properly process credentials for disabled accounts. An attacker could possibly use this issue to login to the platform with an expired account and a valid password.

Ubuntu Security Notice USN-6038-2

Ubuntu Security Notice 6038-2 - USN-6038-1 fixed several vulnerabilities in Go 1.18. This update provides the corresponding updates for Go 1.13 and Go 1.16. CVE-2022-29526 and CVE-2022-30630 only affected Go 1.16. It was discovered that the Go net/http module incorrectly handled Transfer-Encoding headers in the HTTP/1 client. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack.

Ubuntu Security Notice USN-6568-1

Ubuntu Security Notice 6568-1 - The ClamAV package was updated to a new upstream version to remain compatible with signature database downloads.

OX App Suite 7.10.6 Access Control / Cross Site Scripting

OX App Suite version 7.10.6-rev51 suffers from an access control vulnerability. Version 7.10.6-rev34 suffers from multiple cross site scripting vulnerabilities.

OX App Suite 7.10.6 XSS / Command Execution / LDAP Injection

OX App Suite version 7.10.6-rev50 suffers from remote code execution and LDAP injection vulnerabilities. Version 7.10.6-rev33 suffers from a cross site scripting vulnerability.

Ubuntu Security Notice USN-6569-1

Ubuntu Security Notice 6569-1 - it was discovered that libclamunrar incorrectly handled directories when extracting RAR archives. A remote attacker could possibly use this issue to overwrite arbitrary files and execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. It was discovered that libclamunrar incorrectly validated certain structures when extracting RAR archives. A remote attacker could possibly use this issue to execute arbitrary code.

Microsoft SQL Server db_ddladmin Privilege Escalation

Microsoft SQL Server versions 2014 through 2022 suffers from a db_ddladmin privilege escalation vulnerability. When escalated to Microsoft as a concern, they instead opted to update their documentation to note that this is possible instead of addressing the issue.

Red Hat Security Advisory 2024-0089-03

Red Hat Security Advisory 2024-0089-03 - An update for kpatch-patch is now available for Red Hat Enterprise Linux 8. Issues addressed include a use-after-free vulnerability.

Ubuntu Security Notice USN-6567-1

Ubuntu Security Notice 6567-1 - Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the USB xHCI controller device. A privileged guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that QEMU incorrectly handled the TCG Accelerator. A local attacker could use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code and escalate privileges. This issue only affected Ubuntu 20.04 LTS.

cpio privilege escalation vulnerability via setuid files in cpio archive

Posted by Georgi Guninski on Jan 08

cpio privilege escalation vulnerability via setuid files in cpio archive

Happy New Year, let in 2024 happiness be with you! :)

When extracting archives cpio (at least version 2.13) preserves
the setuid flag, which might lead to privilege escalation.

One example is r00t extracts to /tmp/ and scidiot runs /tmp/micq/backd00r
without further interaction from root.

We believe this is vulnerability, since directory traversal in cpio
is considered...

OXAS-ADV-2023-0006: OX App Suite Security Advisory

Posted by Martin Heiland via Fulldisclosure on Jan 08

Dear subscribers,

We're sharing our latest advisory with you and like to thank everyone who contributed in finding and solving those
vulnerabilities. Feel free to join our bug bounty programs for OX AppSuite, Dovecot and PowerDNS at YesWeHack.

This advisory has also been published at https://documentation.open-xchange.com/security/advisories/.

Yours sincerely,
Martin Heiland, Open-Xchange GmbH

Internal reference: MWB-2315
Type:...

OXAS-ADV-2023-0005: OX App Suite Security Advisory

Posted by Martin Heiland via Fulldisclosure on Jan 08

Dear subscribers,

We're sharing our latest advisory with you and like to thank everyone who contributed in finding and solving those
vulnerabilities. Feel free to join our bug bounty programs for OX AppSuite, Dovecot and PowerDNS at YesWeHack.

This advisory has also been published at https://documentation.open-xchange.com/security/advisories/.

Yours sincerely,
Martin Heiland, Open-Xchange GmbH

Internal reference: MWB-2261
Type:...

SSH-Snake: Automated SSH-Based Network Traversal

Posted by Joshua Rogers on Jan 08

SSH-Snake is a powerful tool designed to perform automatic network
traversal using SSH private keys discovered on systems, with the objective
of creating a comprehensive map of a network and its dependencies,
identifying to what extent a network can be compromised using SSH and SSH
private keys starting from a particular system.

SSH-Snake can automatically reveal the relationship between systems which
are connected via SSH, which would normally...

Gentoo Linux Security Advisory 202401-12

Gentoo Linux Security Advisory 202401-12 - Multiple vulnerabilities have been found in Synapse, the worst of which could result in information leaks. Versions greater than or equal to 1.96.0 are affected.

Gentoo Linux Security Advisory 202401-11

Gentoo Linux Security Advisory 202401-11 - Multiple vulnerabilities have been found in Apache Batik, the worst of which could result in arbitrary code execution. Versions greater than or equal to 1.17 are affected.

Gentoo Linux Security Advisory 202401-10

Gentoo Linux Security Advisory 202401-10 - Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could lead to remote code execution. Versions greater than or equal to 115.6.0:esr are affected.

Ubuntu Security Notice USN-6499-2

Ubuntu Security Notice 6499-2 - USN-6499-1 fixed vulnerabilities in GnuTLS. This update provides the corresponding update for Ubuntu 18.04 LTS. It was discovered that GnuTLS had a timing side-channel when handling certain RSA-PSK key exchanges. A remote attacker could possibly use this issue to recover sensitive information.

Gentoo Linux Security Advisory 202401-09

Gentoo Linux Security Advisory 202401-9 - Multiple vulnerabilities have been found in Eclipse Mosquitto which could result in denial of service. Versions greater than or equal to 2.0.17 are affected.

Gentoo Linux Security Advisory 202401-08

Gentoo Linux Security Advisory 202401-8 - Multiple vulnerabilities have been discovered in util-linux which can lead to denial of service or information disclosure. Versions greater than or equal to 2.37.4 are affected.

Red Hat Security Advisory 2024-0071-03

Red Hat Security Advisory 2024-0071-03 - An update for squid is now available for Red Hat Enterprise Linux 9. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.

Red Hat Security Advisory 2024-0072-03

Red Hat Security Advisory 2024-0072-03 - An update for squid is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.

Gentoo Linux Security Advisory 202401-07

Gentoo Linux Security Advisory 202401-7 - A vulnerability was found in R which could allow for remote code execution. Versions greater than or equal to 4.0.4 are affected.

Gentoo Linux Security Advisory 202401-06

Gentoo Linux Security Advisory 202401-6 - A vulnerability has been found in CUPS filters where remote code execution is possible via the beh filter. Versions greater than or equal to 1.28.17-r2 are affected.

Ubuntu Security Notice USN-6549-4

Ubuntu Security Notice 6549-4 - It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service. Lin Ma discovered that the Netlink Transformation subsystem in the Linux kernel did not properly initialize a policy data structure, leading to an out-of-bounds vulnerability. A local privileged attacker could use this to cause a denial of service or possibly expose sensitive information.

Gentoo Linux Security Advisory 202401-04

Gentoo Linux Security Advisory 202401-4 - Several vulnerabilities have been found in WebKitGTK+, the worst of which can lead to remote code execution. Versions greater than or equal to 2.42.3:4 are affected.

Gentoo Linux Security Advisory 202401-05

Gentoo Linux Security Advisory 202401-5 - A vulnerability has been found in RDoc which allows for command injection. Versions greater than or equal to 6.3.2 are affected.

Debian Security Advisory 5596-1

Debian Linux Security Advisory 5596-1 - Multiple security vulnerabilities have been discovered in Asterisk, an Open Source Private Branch Exchange.

Debian Security Advisory 5597-1

Debian Linux Security Advisory 5597-1 - It was discovered that Exim, a mail transport agent, can be induced to accept a second message embedded as part of the body of a first message in certain configurations where PIPELINING or CHUNKING on incoming connections is offered.

Gentoo Linux Security Advisory 202401-02

Gentoo Linux Security Advisory 202401-2 - Multiple vulnerabilities have been found in c-ares, the worst of which could result in the loss of confidentiality or integrity. Versions greater than or equal to 1.19.0 are affected.

Gentoo Linux Security Advisory 202401-03

Gentoo Linux Security Advisory 202401-3 - Multiple vulnerabilities have been discovered in Bluez, the worst of which can lead to privilege escalation. Versions greater than or equal to 5.70-r1 are affected.

Debian Security Advisory 5595-1

Debian Linux Security Advisory 5595-1 - Multiple security issues were discovered in Chromium, which could result in the execution of arbitrary code, denial of service or information disclosure.

Windows PowerShell Single Quote Code Execution / Event Log Bypass

Posted by hyp3rlinx on Jan 04

[+] Credits: John Page (aka hyp3rlinx)
[+] Website: hyp3rlinx.altervista.org
[+] Source:
http://hyp3rlinx.altervista.org/advisories/WINDOWS_POWERSHELL_SINGLE_QUOTE_CODE_EXEC_EVENT_LOG_BYPASS.txt
[+] twitter.com/hyp3rlinx
[+] twitter.com/malvuln
[+] ISR: ApparitionSec

[Vendor]
www.microsoft.com

[Product]
Microsoft Windows PowerShell

Built on the . NET Framework, Windows PowerShell helps IT professionals and
power users control and automate the...

RansomLord v2 - Anti-Ransomware Exploitation Tool / New Release

Posted by hyp3rlinx on Jan 04

RansomLord v2 - Anti-Ransomware Exploitation Tool

[Description]
RansomLord is a proof-of-concept Anti-Ransomware exploitation tool that
generates PE files, used to exploit vulnerable Ransomware pre-encryption.

Lang: C

SHA256 : 8EA83752C4096C778709C14B60B9735CC68A5971DCDB0028A0BB167550554769

This version now intercepts and terminates malware tested from 43 different
threat groups.
Adding Wagner, Hakbit, Paradise, Jaff, DoubleZero, Blacksnake,...

Ubuntu Security Notice USN-6565-1

Ubuntu Security Notice 6565-1 - It was discovered that OpenSSH incorrectly handled supplemental groups when running helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand as a different user. An attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 20.04 LTS. It was discovered that OpenSSH incorrectly added destination constraints when PKCS#11 token keys were added to ssh-agent, contrary to expectations. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04.

Ubuntu Security Notice USN-6566-1

Ubuntu Security Notice 6566-1 - It was discovered that SQLite incorrectly handled certain protection mechanisms when using a CLI script with the --safe option, contrary to expectations. This issue only affected Ubuntu 22.04 LTS. It was discovered that SQLite incorrectly handled certain memory operations in the sessions extension. A remote attacker could possibly use this issue to cause SQLite to crash, resulting in a denial of service.

Red Hat Security Advisory 2024-0046-03

Red Hat Security Advisory 2024-0046-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8. Issues addressed include buffer over-read, denial of service, and null pointer vulnerabilities.

Red Hat Security Advisory 2024-0033-03

Red Hat Security Advisory 2024-0033-03 - An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.

Debian Security Advisory 5594-1

Debian Linux Security Advisory 5594-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

Ubuntu Security Notice USN-6564-1

Ubuntu Security Notice 6564-1 - Hubert Kario discovered that Node.js incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to obtain sensitive information. CarpetFuzz, Dawei Wang discovered that Node.js incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.

Red Hat Security Advisory 2024-0026-03

Red Hat Security Advisory 2024-0026-03 - An update for firefox is now available for Red Hat Enterprise Linux 7. Issues addressed include buffer overflow and use-after-free vulnerabilities.

Red Hat Security Advisory 2024-0027-03

Red Hat Security Advisory 2024-0027-03 - An update for thunderbird is now available for Red Hat Enterprise Linux 7. Issues addressed include buffer overflow and use-after-free vulnerabilities.

Red Hat Security Advisory 2024-0028-03

Red Hat Security Advisory 2024-0028-03 - An update for thunderbird is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include buffer overflow and use-after-free vulnerabilities.