Bug 2254630 (CVE-2023-49294)

Summary:	CVE-2023-49294 asterisk: access to arbitrary files via directory traversal
Product:	[Other] Security Response	Reporter:	Robb Gatica <rgatica>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	asterisk 18.20.1, asterisk 20.5.1, asterisk 21.0.1, certified-asterisk 18.9-cert6	Doc Type:	---
Doc Text:	A flaw was discovered in Asterisk. A remote attacker may be able to read arbitrary files in restricted directories by sending a specially-crafted request to the server.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2254631, 2254632
Bug Blocks:	2254624

Description Robb Gatica 2023-12-14 23:16:44 UTC

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue.

https://github.com/asterisk/asterisk/blob/master/main/manager.c#L3757
https://github.com/asterisk/asterisk/commit/424be345639d75c6cb7d0bd2da5f0f407dbd0bd5
https://github.com/asterisk/asterisk/security/advisories/GHSA-8857-hfmw-vg8f

Comment 1 Robb Gatica 2023-12-14 23:17:01 UTC

Created asterisk tracking bugs for this issue:

Affects: epel-all [bug 2254631]
Affects: fedora-all [bug 2254632]