CVE-2011-2536
Summary
| CVE | CVE-2011-2536 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2011-07-06 19:55:03 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| Description | chan_sip.c in the SIP channel driver in Asterisk Open Source 1.4.x before 1.4.41.2, 1.6.2.x before 1.6.2.18.2, and 1.8.x before 1.8.4.4, and Asterisk Business Edition C.3.x before C.3.7.3, disregards the alwaysauthreject option and generates different responses for invalid SIP requests depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of requests. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
PartialIntegrity
NoneAvailability
NoneAV:N/AC:L/Au:N/C:P/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Digium | Asterisk | 1.4.0 | All | All | All |
| Application | Digium | Asterisk | 1.4.0 | beta1 | All | All |
| Application | Digium | Asterisk | 1.4.0 | beta2 | All | All |
| Application | Digium | Asterisk | 1.4.0 | beta3 | All | All |
| Application | Digium | Asterisk | 1.4.0 | beta4 | All | All |
| Application | Digium | Asterisk | 1.4.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.10 | All | All | All |
| Application | Digium | Asterisk | 1.4.10.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.11 | All | All | All |
| Application | Digium | Asterisk | 1.4.12 | All | All | All |
| Application | Digium | Asterisk | 1.4.12.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.13 | All | All | All |
| Application | Digium | Asterisk | 1.4.14 | All | All | All |
| Application | Digium | Asterisk | 1.4.15 | All | All | All |
| Application | Digium | Asterisk | 1.4.16 | All | All | All |
| Application | Digium | Asterisk | 1.4.16.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.16.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.17 | All | All | All |
| Application | Digium | Asterisk | 1.4.18 | All | All | All |
| Application | Digium | Asterisk | 1.4.19 | All | All | All |
| Application | Digium | Asterisk | 1.4.19 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.19 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.19 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.19 | rc4 | All | All |
| Application | Digium | Asterisk | 1.4.19.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.19.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.20 | All | All | All |
| Application | Digium | Asterisk | 1.4.20 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.20 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.20 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.20.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.21 | All | All | All |
| Application | Digium | Asterisk | 1.4.21 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.21 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.21.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.21.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.22 | All | All | All |
| Application | Digium | Asterisk | 1.4.22 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.22 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.22 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.22 | rc4 | All | All |
| Application | Digium | Asterisk | 1.4.22 | rc5 | All | All |
| Application | Digium | Asterisk | 1.4.22.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.22.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.23 | All | All | All |
| Application | Digium | Asterisk | 1.4.23 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.23 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.23 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.23 | rc4 | All | All |
| Application | Digium | Asterisk | 1.4.23.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.23.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.24 | All | All | All |
| Application | Digium | Asterisk | 1.4.24 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.24.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.25 | All | All | All |
| Application | Digium | Asterisk | 1.4.25 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.25.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.26 | All | All | All |
| Application | Digium | Asterisk | 1.4.26 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.26 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.26 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.26 | rc4 | All | All |
| Application | Digium | Asterisk | 1.4.26 | rc5 | All | All |
| Application | Digium | Asterisk | 1.4.26 | rc6 | All | All |
| Application | Digium | Asterisk | 1.4.26.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.26.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.26.3 | All | All | All |
| Application | Digium | Asterisk | 1.4.27 | All | All | All |
| Application | Digium | Asterisk | 1.4.27 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.27 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.27 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.27 | rc4 | All | All |
| Application | Digium | Asterisk | 1.4.27 | rc5 | All | All |
| Application | Digium | Asterisk | 1.4.27.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.28 | All | All | All |
| Application | Digium | Asterisk | 1.4.28 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.29 | All | All | All |
| Application | Digium | Asterisk | 1.4.29 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.29.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.3 | All | All | All |
| Application | Digium | Asterisk | 1.4.30 | All | All | All |
| Application | Digium | Asterisk | 1.4.30 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.30 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.31 | All | All | All |
| Application | Digium | Asterisk | 1.4.31 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.31 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.32 | All | All | All |
| Application | Digium | Asterisk | 1.4.32 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.33 | All | All | All |
| Application | Digium | Asterisk | 1.4.33 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.33 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.33.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.34 | All | All | All |
| Application | Digium | Asterisk | 1.4.34 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.34 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.35 | All | All | All |
| Application | Digium | Asterisk | 1.4.35 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.36 | All | All | All |
| Application | Digium | Asterisk | 1.4.36 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.37 | All | All | All |
| Application | Digium | Asterisk | 1.4.37 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.38 | All | All | All |
| Application | Digium | Asterisk | 1.4.38 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.39 | All | All | All |
| Application | Digium | Asterisk | 1.4.39 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.39.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.39.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.4 | All | All | All |
| Application | Digium | Asterisk | 1.4.40 | All | All | All |
| Application | Digium | Asterisk | 1.4.40 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.40 | rc2 | All | All |
| Application | Digium | Asterisk | 1.4.40 | rc3 | All | All |
| Application | Digium | Asterisk | 1.4.40.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.40.2 | All | All | All |
| Application | Digium | Asterisk | 1.4.41 | All | All | All |
| Application | Digium | Asterisk | 1.4.41 | rc1 | All | All |
| Application | Digium | Asterisk | 1.4.41.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.5 | All | All | All |
| Application | Digium | Asterisk | 1.4.6 | All | All | All |
| Application | Digium | Asterisk | 1.4.7 | All | All | All |
| Application | Digium | Asterisk | 1.4.7.1 | All | All | All |
| Application | Digium | Asterisk | 1.4.8 | All | All | All |
| Application | Digium | Asterisk | 1.4.9 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc2 | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc3 | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc4 | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc5 | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc6 | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc7 | All | All |
| Application | Digium | Asterisk | 1.6.2.0 | rc8 | All | All |
| Application | Digium | Asterisk | 1.6.2.1 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.1 | rc1 | All | All |
| Application | Digium | Asterisk | 1.6.2.15 | rc1 | All | All |
| Application | Digium | Asterisk | 1.6.2.16 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.16 | rc1 | All | All |
| Application | Digium | Asterisk | 1.6.2.16.1 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.16.2 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.17 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.17 | rc1 | All | All |
| Application | Digium | Asterisk | 1.6.2.17 | rc2 | All | All |
| Application | Digium | Asterisk | 1.6.2.17 | rc3 | All | All |
| Application | Digium | Asterisk | 1.6.2.17.1 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.17.2 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.17.3 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.18 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.18 | rc1 | All | All |
| Application | Digium | Asterisk | 1.6.2.18.1 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.2 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.3 | rc2 | All | All |
| Application | Digium | Asterisk | 1.6.2.4 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.5 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.6 | All | All | All |
| Application | Digium | Asterisk | 1.6.2.6 | rc1 | All | All |
| Application | Digium | Asterisk | 1.6.2.6 | rc2 | All | All |
| Application | Digium | Asterisk | 1.8.0 | All | All | All |
| Application | Digium | Asterisk | 1.8.0 | beta1 | All | All |
| Application | Digium | Asterisk | 1.8.0 | beta2 | All | All |
| Application | Digium | Asterisk | 1.8.0 | beta3 | All | All |
| Application | Digium | Asterisk | 1.8.0 | beta4 | All | All |
| Application | Digium | Asterisk | 1.8.0 | beta5 | All | All |
| Application | Digium | Asterisk | 1.8.0 | rc2 | All | All |
| Application | Digium | Asterisk | 1.8.0 | rc3 | All | All |
| Application | Digium | Asterisk | 1.8.0 | rc4 | All | All |
| Application | Digium | Asterisk | 1.8.0 | rc5 | All | All |
| Application | Digium | Asterisk | 1.8.1 | All | All | All |
| Application | Digium | Asterisk | 1.8.1 | rc1 | All | All |
| Application | Digium | Asterisk | 1.8.1.1 | All | All | All |
| Application | Digium | Asterisk | 1.8.1.2 | All | All | All |
| Application | Digium | Asterisk | 1.8.2 | All | All | All |
| Application | Digium | Asterisk | 1.8.2.1 | All | All | All |
| Application | Digium | Asterisk | 1.8.2.2 | All | All | All |
| Application | Digium | Asterisk | 1.8.2.3 | All | All | All |
| Application | Digium | Asterisk | 1.8.2.4 | All | All | All |
| Application | Digium | Asterisk | 1.8.3 | All | All | All |
| Application | Digium | Asterisk | 1.8.3 | rc1 | All | All |
| Application | Digium | Asterisk | 1.8.3 | rc2 | All | All |
| Application | Digium | Asterisk | 1.8.3 | rc3 | All | All |
| Application | Digium | Asterisk | 1.8.3.1 | All | All | All |
| Application | Digium | Asterisk | 1.8.3.2 | All | All | All |
| Application | Digium | Asterisk | 1.8.3.3 | All | All | All |
| Application | Digium | Asterisk | 1.8.4 | All | All | All |
| Application | Digium | Asterisk | 1.8.4 | rc1 | All | All |
| Application | Digium | Asterisk | 1.8.4 | rc2 | All | All |
| Application | Digium | Asterisk | 1.8.4 | rc3 | All | All |
| Application | Digium | Asterisk | 1.8.4.1 | All | All | All |
| Application | Digium | Asterisk | 1.8.4.2 | All | All | All |
| Application | Digium | Asterisk | 1.8.4.3 | All | All | All |
| Application | Digium | Asterisk | c.3.0 | - | business | All |
| Application | Digium | Asterisk | c.3.1.0 | - | business | All |
| Application | Digium | Asterisk | c.3.1.1 | - | business | All |
| Application | Digium | Asterisk | c.3.2.2 | - | business | All |
| Application | Digium | Asterisk | c.3.2.3 | - | business | All |
| Application | Digium | Asterisk | c.3.3.2 | - | business | All |
| Application | Digium | Asterisk | c.3.6.2 | - | business | All |
| Application | Digium | Asterisk | c.3.6.3 | - | business | All |
| Application | Digium | Asterisk | c.3.6.4 | - | business | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| downloads.asterisk.org/pub/security/AST-2011-011-1.8.diff | af854a3a-2127-422b-91ae-364da2661108 | downloads.asterisk.org | Patch |
| Asterisk Discloses Username Validity to Remote Users - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| AST-2011-011 | af854a3a-2127-422b-91ae-364da2661108 | downloads.asterisk.org | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.