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Details of issue NIXPKGS-2026-0158

NIXPKGS-2026-0158
published on
Permalink CVE-2026-23741
0.0 NONE
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Changed (C)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
updated 3 months, 3 weeks ago by @LeSuisse Activity log
  • Created suggestion 3 months, 3 weeks ago
  • @LeSuisse ignored
    5 packages
    • asterisk-module-sccp
    • asterisk-ldap
    • python312Packages.asterisk-mbox
    • python313Packages.asterisk-mbox
    • python314Packages.asterisk-mbox
    3 months, 3 weeks ago
  • @LeSuisse accepted 3 months, 3 weeks ago
  • @LeSuisse published on GitHub 3 months, 3 weeks ago
ast_coredumper running as root sources ast_debug_tools.conf from /etc/asterisk; potentially leading to privilege escalation

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, the asterisk/contrib/scripts/ast_coredumper runs as root, as noted by the NOTES tag on line 689 of the ast_coredumper file. The script will source the contents of /etc/asterisk/ast_debug_tools.conf, which resides in a folder that is writeable by the asterisk user:group. Due to the /etc/asterisk/ast_debug_tools.conf file following bash semantics and it being loaded; an attacker with write permissions may add or modify the file such that when the root ast_coredumper is run; it would source and thereby execute arbitrary bash code found in the /etc/asterisk/ast_debug_tools.conf. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.

Affected products

asterisk
  • ==< 21.12.1
  • ==< 22.8.2
  • ==< 23.2.2
  • ==< 20.18.2
  • ==< 20.7-cert9

Matching in nixpkgs

pkgs.asterisk_18

Software implementation of a telephone private branch exchange (PBX)

Ignored packages (5)

Package maintainers

Upstream advisory: https://github.com/asterisk/asterisk/security/advisories/GHSA-rvch-3jmx-3jf3