Bug 928777 (CVE-2013-2264) - CVE-2013-2264 asterisk: Username disclosure in SIP channel driver (AST-2013-003)
Summary: CVE-2013-2264 asterisk: Username disclosure in SIP channel driver (AST-2013-003)
Alias: CVE-2013-2264
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 928552 928779 928780
TreeView+ depends on / blocked
Reported: 2013-03-28 12:32 UTC by Jan Lieskovsky
Modified: 2019-09-29 13:02 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-04-10 22:39:46 UTC

Attachments (Terms of Use)

Description Jan Lieskovsky 2013-03-28 12:32:41 UTC
An information disclosure flaw was found in the way SIP channel driver of Asterisk, an open-source telephony toolkit, handled user authentication when:
* alwaysauthreject option was enabled,
* allowguest was disabled, and
* autocreatepeer option was disabled.

A remote attacker could use this flaw to obtain information if particular user account exists by issuing certain INVITE, SUBSCRIBE and / or REGISTER transactions.

Upstream advisory:
[1] http://downloads.asterisk.org/pub/security/AST-2013-003.html

Relevant upstream patches:
[2] http://downloads.asterisk.org/pub/security/AST-2013-003-1.8.diff
[3] http://downloads.asterisk.org/pub/security/AST-2013-003-10.diff
[4] http://downloads.asterisk.org/pub/security/AST-2013-003-11.diff

Comment 1 Jan Lieskovsky 2013-03-28 12:34:03 UTC
This issue affects the versions of the asterisk package, as shipped with Fedora release of 18, 17, and Fedora EPEL-6. Please schedule an update.

Comment 2 Jan Lieskovsky 2013-03-28 12:36:18 UTC
Created asterisk tracking bugs for this issue

Affects: fedora-18 [bug 928552]

Comment 3 Jan Lieskovsky 2013-03-28 12:38:47 UTC
Created asterisk tracking bugs for this issue

Affects: fedora-17 [bug 928779]
Affects: epel-6 [bug 928780]

Comment 4 Fedora Update System 2013-04-07 00:44:37 UTC
asterisk-10.12.2-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

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