cbcvebase.
CVE-2022-23124
published 2023-03-28

CVE-2022-23124: This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk. Authentication is not required to exploit…

PriorityP265critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.84%
84.9th percentile
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the get_finderinfo method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15870.

Affected

13 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debiandebian_linux
debiannetatalk< netatalk 3.1.12~ds-8+deb11u1 (bullseye)netatalk 3.1.12~ds-8+deb11u1 (bullseye)
netatalknetatalk< 3.1.133.1.13
netatalknetatalk
netatalknetatalk>= 0 < 3.1.12~ds-8+deb11u13.1.12~ds-8+deb11u1
netatalknetatalk>= 0 < 3.1.13~ds-13.1.13~ds-1
netatalknetatalk>= 0 < 3.1.13~ds-13.1.13~ds-1
netatalknetatalk>= 0 < 3.1.12~ds-4ubuntu0.20.04.13.1.12~ds-4ubuntu0.20.04.1
netatalknetatalk>= 0 < 3.1.12~ds-9ubuntu0.22.04.13.1.12~ds-9ubuntu0.22.04.1
netatalknetatalk>= 0 < 2.2.2-1ubuntu2.2+esm12.2.2-1ubuntu2.2+esm1
netatalknetatalk>= 0 < 2.2.5-1ubuntu0.2+esm12.2.5-1ubuntu0.2+esm1
netatalknetatalk>= 0 < 2.2.6-1ubuntu0.18.04.2+esm12.2.6-1ubuntu0.18.04.2+esm1

Detection & IOCsextracted from sources · hover to see the quote

  • The vulnerability exists within the `get_finderinfo` method in Netatalk; monitor for exploitation attempts targeting this function, which involves a read past the end of an allocated buffer due to lack of proper validation of user-supplied data.
  • No authentication is required to exploit this vulnerability; treat any unauthenticated AFP/Netatalk traffic targeting get_finderinfo as suspicious.
  • This vulnerability can be chained with other vulnerabilities to achieve remote code execution as root; correlate with other Netatalk CVEs (e.g., ZDI-CAN series) for multi-stage attack detection.
  • ·Debian bullseye fix is available in version 3.1.12~ds-8+deb11u1; systems running older Netatalk versions on bullseye remain vulnerable.
  • ·Debian forky, sid, and trixie are resolved at version 3.1.13~ds-1; ensure Netatalk is updated to at least this version on those branches.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_ubuntu8.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.