Bug 2562324 (CVE-2026-57202) - CVE-2026-57202 asterisk: Asterisk: Privilege escalation via setChannelVar in Asterisk REST Interface
Summary: CVE-2026-57202 asterisk: Asterisk: Privilege escalation via setChannelVar in ...
Keywords:
Status: NEW
Alias: CVE-2026-57202
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2564854 2564856 2564857 2564859
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-27 18:34 UTC by OSIDB Bzimport
Modified: 2026-11-02 09:57 UTC (History)
0 users

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Description OSIDB Bzimport 2026-10-27 18:34:38 UTC 
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, an authenticated Asterisk REST Interface (ARI) attacker with read-only privileges may use `setChannelVar` to execute write dialplan functions, including `FILE()` writes, even when `live_dangerously` in `asterisk.conf` is set to no. The Asterisk HTTP web server must be enabled and reachable, and the attacker must already have valid `read-only ARI credentials`. HTTP is disabled by default and binds only to 127.0.0.1 by default even when enabled. 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.
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