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CVE-2026-57203

CVE-2026-57203 · Asterisk: Local privilege escalation through ast_loggrabber's world-writable helper location

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, `ast_loggrabber` executes a `Python script` from the world-writable `/tmp` directory. An attacker already authorized to open a shell session on the Asterisk server may place a malicious script there and gain elevated privileges or execute code when an administrator runs `ast_loggrabber` as a user with elevated privileges. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

CVSS 6.9 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • asterisk

    Versions
    • < 20.20.1: Affected
    • >= 21.0.0-pre1, < 21.12.3: Affected
    • >= 22.0.0-pre1, < 22.10.1: Affected
    • >= 23.0.0-pre1, < 23.4.1: Affected

    No fix published

  • certified-asterisk

    Versions
    • < 20.7-cert11: Affected
    • >= 22.8-cert1-pre1, < 22.8-cert3: Affected

    No fix published

  • asterisk Debian:14

    Versions
    • 0.1.11-3
    • 0.1.11-3woody1
    • 1:1.0.5-2
    • 1:1.0.5-4
    • 1:1.0.6-1
    • 1:1.0.6-2
    • 1:1.0.7-1
    • 1:1.0.7.dfsg.1-1
    • 1:1.0.7.dfsg.1-2
    • 1:1.0.7.dfsg.1-2sarge1
    • 1:1.0.7.dfsg.1-2sarge2
    • 1:1.0.7.dfsg.1-2sarge3
    • 1:1.0.7.dfsg.1-2sarge4
    • 1:1.0.7.dfsg.1-2sarge5
    • 1:1.0.7.dfsg.1-2sarge6
    • 1:1.0.9.dfsg-1
    • 1:1.0.9.dfsg-3
    • 1:1.0.9.dfsg-4
    • 1:1.0.9.dfsg-5
    • 1:1.0.9.dfsg-6
    • 1:1.2.0-beta1.dfsg-1
    • 1:1.2.0-beta2.dfsg-1
    • 1:1.2.0-beta2.dfsg-2
    • 1:1.2.0-beta2.dfsg-3
    • 1:1.2.0-rc1.dfsg-1
    • 1:1.2.0-rc2.dfsg-1
    • 1:1.2.0.dfsg-1
    • 1:1.2.0.dfsg-2
    • 1:1.2.0.dfsg-3
    • 1:1.2.0.dfsg-4
    • 1:1.2.0.dfsg-5
    • 1:1.2.0.dfsg-6
    • 1:1.2.1.dfsg-1
    • 1:1.2.1.dfsg-2
    • 1:1.2.1.dfsg-3
    • 1:1.2.10.dfsg-1
    • 1:1.2.10.dfsg-1bpo1
    • 1:1.2.10.dfsg-2
    • 1:1.2.10.dfsg-3
    • 1:1.2.11.dfsg-1
    • 1:1.2.12.1.dfsg-1
    • 1:1.2.13~dfsg-1
    • 1:1.2.13~dfsg-2
    • 1:1.2.13~dfsg-2etch1
    • 1:1.2.13~dfsg-2etch2
    • 1:1.2.13~dfsg-2etch3
    • 1:1.2.13~dfsg-2etch4
    • 1:1.2.14~dfsg-1
    • 1:1.2.14~dfsg-2
    • 1:1.2.14~dfsg-3
    • 1:1.2.14~dfsg-4
    • 1:1.2.15~dfsg-1
    • 1:1.2.16~dfsg-1
    • 1:1.2.17~dfsg-1
    • 1:1.2.4.dfsg-1
    • 1:1.2.4.dfsg-2
    • 1:1.2.4.dfsg-3
    • 1:1.2.4.dfsg-4
    • 1:1.2.4.dfsg-5
    • 1:1.2.4.dfsg-6
    • 1:1.2.4.dfsg-6+b1
    • 1:1.2.4.dfsg-7
    • 1:1.2.7.1.dfsg-1
    • 1:1.2.7.1.dfsg-2
    • 1:1.2.7.1.dfsg-3
    • 1:1.2.9.1.dfsg-1
    • 1:1.4.10~dfsg-1
    • 1:1.4.11~dfsg-1
    • 1:1.4.11~dfsg-2
    • 1:1.4.11~dfsg-3
    • 1:1.4.11~dfsg-4
    • 1:1.4.13~dfsg-1
    • 1:1.4.15~dfsg-1
    • 1:1.4.16.2~dfsg-1
    • 1:1.4.16.2~dfsg-2
    • 1:1.4.17~dfsg-1
    • 1:1.4.17~dfsg-2
    • 1:1.4.18.1~dfsg-1
    • 1:1.4.18~dfsg-1
    • 1:1.4.19.1~dfsg-1
    • 1:1.4.20~dfsg-1
    • 1:1.4.21.1~dfsg-1
    • 1:1.4.21.2~dfsg-1
    • 1:1.4.21.2~dfsg-2
    • 1:1.4.21.2~dfsg-3
    • 1:1.4.21.2~dfsg-3+lenny1
    • 1:1.4.21.2~dfsg-3+lenny2
    • 1:1.4.21.2~dfsg-3+lenny2.1
    • 1:1.4.21.2~dfsg-3+lenny3
    • 1:1.4.21.2~dfsg-3+lenny5
    • 1:1.4.21.2~dfsg-3+lenny6
    • 1:1.4.21.2~dfsg-3.1
    • 1:1.4.2~dfsg-1
    • 1:1.4.2~dfsg-2
    • 1:1.4.2~dfsg-3
    • 1:1.4.2~dfsg-4
    • 1:1.4.2~dfsg-5
    • 1:1.4.3~dfsg-1
    • 1:1.4.4~dfsg-1
    • 1:1.4.4~dfsg-2
    • 1:1.4.4~dfsg-3
    • 1:1.4.5~dfsg-1
    • 1:1.4.6~dfsg-1
    • 1:1.4.8~dfsg-1
    • 1:1.4.8~dfsg-2
    • 1:1.4.9~dfsg-1
    • 1:1.6.1.0~dfsg-1
    • 1:1.6.1.0~dfsg~rc3-1
    • 1:1.6.2.0-1
    • 1:1.6.2.0~dfsg~beta3-1
    • 1:1.6.2.0~dfsg~rc1-1
    • 1:1.6.2.0~rc3-1
    • 1:1.6.2.0~rc3-2
    • 1:1.6.2.0~rc6-1
    • 1:1.6.2.0~rc7-1
    • 1:1.6.2.2-1
    • 1:1.6.2.6-1
    • 1:1.6.2.7-1
    • 1:1.6.2.9-1
    • 1:1.6.2.9-1~bpo50+1
    • 1:1.6.2.9-1~bpo50+2
    • 1:1.6.2.9-1~bpo50+3
    • 1:1.6.2.9-2
    • 1:1.6.2.9-2+squeeze1
    • 1:1.6.2.9-2+squeeze10
    • 1:1.6.2.9-2+squeeze11
    • 1:1.6.2.9-2+squeeze12
    • 1:1.6.2.9-2+squeeze2
    • 1:1.6.2.9-2+squeeze3
    • 1:1.6.2.9-2+squeeze4
    • 1:1.6.2.9-2+squeeze5
    • 1:1.6.2.9-2+squeeze6
    • 1:1.6.2.9-2+squeeze7
    • 1:1.6.2.9-2+squeeze8
    • 1:1.6.2.9-2+squeeze9
    • 1:1.8.10.0~dfsg-1
    • 1:1.8.10.1~dfsg-1
    • 1:1.8.11.1~dfsg-1
    • 1:1.8.13.0~dfsg-1
    • 1:1.8.13.0~dfsg-1~bpo60+1
    • 1:1.8.13.1~dfsg-1
    • 1:1.8.13.1~dfsg-1+powerpcspe1
    • 1:1.8.13.1~dfsg-1~bpo60+1
    • 1:1.8.13.1~dfsg-2
    • 1:1.8.13.1~dfsg-3
    • 1:1.8.3.3-1
    • 1:1.8.4-1
    • 1:1.8.4.2-1
    • 1:1.8.4.3-1
    • 1:1.8.4.4~dfsg-1
    • 1:1.8.4.4~dfsg-2
    • 1:1.8.7.1~dfsg-1
    • 1:1.8.7.1~dfsg-2
    • 1:1.8.7.1~dfsg-3
    • 1:1.8.8.0~dfsg-1
    • 1:1.8.8.2~dfsg-1
    • 1:11.10.0~dfsg-1
    • 1:11.10.0~dfsg-1~bpo70+1
    • 1:11.10.2~dfsg-1
    • 1:11.10.2~dfsg-1~bpo70+1
    • 1:11.11.0~dfsg-1
    • 1:11.11.0~dfsg-1~bpo70+1
    • 1:11.11.0~dfsg-2
    • 1:11.12.0~dfsg-1
    • 1:11.12.0~dfsg-1~bpo70+1
    • 1:11.12.1~dfsg-1
    • 1:11.13.0~dfsg-1
    • 1:11.13.0~dfsg-1~bpo70+1
    • 1:11.13.1~dfsg-1
    • 1:11.13.1~dfsg-2
    • 1:11.13.1~dfsg-2~bpo70+1
    • 1:11.5.1~dfsg-1
    • 1:11.5.1~dfsg-2
    • 1:11.5.1~dfsg1-1
    • 1:11.5.1~dfsg1-1~bpo70+1
    • 1:11.6.0~dfsg-1
    • 1:11.6.0~dfsg-2
    • 1:11.6.0~dfsg-3
    • 1:11.7.0~dfsg-1
    • 1:11.7.0~dfsg-1+e1
    • 1:11.7.0~dfsg-1~bpo70+1
    • 1:11.8.0~dfsg-1
    • 1:11.8.0~dfsg-2
    • 1:11.8.1~dfsg-1
    • 1:11.8.1~dfsg-1~bpo70+1
    • 1:11.9.0~dfsg-1
    • 1:11.9.0~dfsg-2
    • 1:11.9.0~dfsg-2~bpo70+1
    • 1:13.0.0~dfsg-1
    • 1:13.0.0~dfsg-2
    • 1:13.1.0~dfsg-1
    • 1:13.1.0~dfsg-1.1
    • 1:13.10.0~dfsg-1
    • 1:13.11.2~dfsg-1
    • 1:13.12.1~dfsg-1
    • 1:13.12.2~dfsg-1
    • 1:13.12.2~dfsg-2
    • 1:13.13.1~dfsg-1
    • 1:13.13.1~dfsg-2
    • 1:13.13.1~dfsg-3
    • 1:13.13.1~dfsg-3~exp1
    • 1:13.13.1~dfsg-4
    • 1:13.14.0~dfsg-1
    • 1:13.14.0~dfsg-1~exp1
    • 1:13.14.1~dfsg-1
    • 1:13.14.1~dfsg-2
    • 1:13.17.0~dfsg-1
    • 1:13.17.0~dfsg-2
    • 1:13.17.1~dfsg-1
    • 1:13.17.2~dfsg-1
    • 1:13.17.2~dfsg-2
    • 1:13.18.1~dfsg-1
    • 1:13.18.3~dfsg-1
    • 1:13.18.5~dfsg-1
    • 1:13.20.0~dfsg-1
    • 1:13.22.0~dfsg-1
    • 1:13.22.0~dfsg-2
    • 1:13.23.1~dfsg-1
    • 1:13.23.1~dfsg-2
    • 1:13.7.2~dfsg-1

    Update to 1:22.10.1+dfsg+~cs6.17.60671434-1

  • asterisk Ubuntu:Pro:16.04:LTS

    Versions
    • 1:13.1.0~dfsg-1.1ubuntu3
    • 1:13.1.0~dfsg-1.1ubuntu4
    • 1:13.1.0~dfsg-1.1ubuntu4.1
    • 1:13.1.0~dfsg-1.1ubuntu4.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • asterisk Ubuntu:18.04:LTS

    Versions
    • 1:13.17.2~dfsg-1ubuntu1
    • 1:13.17.2~dfsg-2ubuntu1
    • 1:13.18.1~dfsg-1ubuntu1
    • 1:13.18.3~dfsg-1ubuntu1
    • 1:13.18.3~dfsg-1ubuntu2
    • 1:13.18.3~dfsg-1ubuntu3
    • 1:13.18.3~dfsg-1ubuntu4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • asterisk Ubuntu:20.04:LTS

    Versions
    • 1:16.2.1~dfsg-2build2
    • 1:16.2.1~dfsg-2build3
    • 1:16.2.1~dfsg-2ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • asterisk Ubuntu:22.04:LTS

    Versions
    • 1:16.16.1~dfsg-2
    • 1:16.16.1~dfsg-4
    • 1:16.16.1~dfsg-4build1
    • 1:16.16.1~dfsg+~2.10-1
    • 1:18.10.0~dfsg+~cs6.10.40431411-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • asterisk Ubuntu:24.04:LTS

    Versions
    • 1:20.4.0~dfsg+~cs6.13.40431414-2
    • 1:20.5.0~dfsg+~cs6.13.40431414-1
    • 1:20.5.1~dfsg+~cs6.13.40431414-1
    • 1:20.5.2~dfsg+~cs6.13.40431414-1
    • 1:20.6.0~dfsg+~cs6.13.40431414-1
    • 1:20.6.0~dfsg+~cs6.13.40431414-2
    • 1:20.6.0~dfsg+~cs6.13.40431414-2build3
    • 1:20.6.0~dfsg+~cs6.13.40431414-2build4
    • 1:20.6.0~dfsg+~cs6.13.40431414-2build5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • asterisk Ubuntu:26.10

    Versions
    • 1:22.5.2~dfsg+~cs6.15.60671435-1
    • 1:22.10.0+dfsg+~cs6.17.60671434-1ubuntu2
    • 1:22.10.0+dfsg+~cs6.17.60671434-1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • asterisk Ubuntu:26.04:LTS

    Versions
    • 1:22.5.2~dfsg+~cs6.15.60671435-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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