Category Archives: Advisories

USN-5728-3: Linux kernel (GCP) vulnerabilities

Read Time:2 Minute, 43 Second

Jann Horn discovered that the Linux kernel did not properly track memory
allocations for anonymous VMA mappings in some situations, leading to
potential data structure reuse. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-42703)

It was discovered that a race condition existed in the memory address space
accounting implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-41222)

It was discovered that a race condition existed in the instruction emulator
of the Linux kernel on Arm 64-bit systems. A local attacker could use this
to cause a denial of service (system crash). (CVE-2022-20422)

It was discovered that the KVM implementation in the Linux kernel did not
properly handle virtual CPUs without APICs in certain situations. A local
attacker could possibly use this to cause a denial of service (host system
crash). (CVE-2022-2153)

Hao Sun and Jiacheng Xu discovered that the NILFS file system
implementation in the Linux kernel contained a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-2978)

Johannes Wikner and Kaveh Razavi discovered that for some Intel x86-64
processors, the Linux kernel’s protections against speculative branch
target injection attacks were insufficient in some circumstances. A local
attacker could possibly use this to expose sensitive information.
(CVE-2022-29901)

Abhishek Shah discovered a race condition in the PF_KEYv2 implementation in
the Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or possibly expose sensitive information (kernel
memory). (CVE-2022-3028)

It was discovered that the Netlink device interface implementation in the
Linux kernel did not properly handle certain error conditions, leading to a
use-after-free vulnerability with some network device drivers. A local
attacker with admin access to the network device could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-3625)

It was discovered that the IDT 77252 ATM PCI device driver in the Linux
kernel did not properly remove any pending timers during device exit,
resulting in a use-after-free vulnerability. A local attacker could
possibly use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2022-3635)

Jann Horn discovered a race condition existed in the Linux kernel when
unmapping VMAs in certain situations, resulting in possible use-after-free
vulnerabilities. A local attacker could possibly use this to cause a denial
of service (system crash) or execute arbitrary code. (CVE-2022-39188)

Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX
storage controller driver in the Linux kernel did not properly handle
certain structures. A local attacker could potentially use this to expose
sensitive information (kernel memory). (CVE-2022-40768)

Sönke Huster discovered that a use-after-free vulnerability existed in the
WiFi driver stack in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2022-42719)

Read More

CyberDanube Security Research 20221124-0 | Authenticated Command Injection Hirschmann BAT-C2

Read Time:12 Second

Posted by Thomas Weber on Nov 29

CyberDanube Security Research 20221124-0
——————————————————————————-
               title| Authenticated Command Injection
             product| Hirschmann (Belden) BAT-C2
  vulnerable version| 8.8.1.0R8
       fixed version| 09.13.01.00R04
          CVE number| CVE-2022-40282
              impact| High
           …

Read More

Win32.Ransom.Conti / Crypto Logic Flaw

Read Time:20 Second

Posted by malvuln on Nov 29

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/99e55ce93392068c970384ab24a0e13d.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Win32.Ransom.Conti
Vulnerability: Crypto Logic Flaw
Description: Conti ransomware FAILS to encrypt non PE files that have a
“.exe” in the filename. Creating specially crafted file names…

Read More

Ransomware Deception Tactics Part 1

Read Time:12 Second

Posted by malvuln on Nov 29

Did you know? some Ransomware like CONTI and others will FAIL to encrypt
non PE files that have a “.exe” in the filename.

Test.exe.docx
Test.exe.pdf

Conti MD5: 9eb9197cd58f4417a27621c4e1b25a71

ATOMSILO MD5: 5559e9f5e1645f8554ea020a29a5a3ee

Read More

Trojan.Win32.DarkNeuron.gen / Named Pipe Null DACL

Read Time:19 Second

Posted by malvuln on Nov 29

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/d891c9374ccb2a4cae2274170e8644d8.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Trojan.Win32.DarkNeuron.gen
Vulnerability: Named Pipe Null DACL
Family: DarkNeuron (Turla Group)
Type: PE32
MD5: d891c9374ccb2a4cae2274170e8644d8
Vuln ID: MVID-2022-0661
Disclosure: 11/24/2022…

Read More

Backdoor.Win32.Autocrat.b / Weak Hardcoded Credentials

Read Time:19 Second

Posted by malvuln on Nov 29

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/4262a8b52b902aa2e6bf02a156d1b8d4.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Backdoor.Win32.Autocrat.b
Vulnerability: Weak Hardcoded Credentials
Description: The malware is packed with PeCompact, listens on TCP port 8536
and requires authentication. However, the password…

Read More

Backdoor.Win32.Serman.a / Unauthenticated Open Proxy

Read Time:19 Second

Posted by malvuln on Nov 29

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/f312e3a436995b86b205a1a37b1bf10f.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln
Backup media: infosec.exchange/@malvuln

Threat: Backdoor.Win32.Serman.a
Vulnerability: Unauthenticated Open Proxy
Family: Serman
Type: PE32
MD5: f312e3a436995b86b205a1a37b1bf10f
Vuln ID: MVID-2022-0659
Disclosure: 11/22/2022
Description: The…

Read More

Open-Xchange Security Advisory 2022-11-24

Read Time:23 Second

Posted by Martin Heiland via Fulldisclosure on Nov 29

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 HackerOne and soon
at YesWeHack.

Yours sincerely,
Martin Heiland, Open-Xchange GmbH

Product: OX App Suite
Vendor: OX Software GmbH

Internal reference: OXUIB-1654
Vulnerability type: Cross-Site Scripting…

Read More