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Status published
Medium
CVE-2011-4597
The SIP over UDP implementation in Asterisk Open Source 1.4.x...
Vulnerability Description
The SIP over UDP implementation in Asterisk Open Source 1.4.x before 1.4.43, 1.6.x before 1.6.2.21, and 1.8.x before 1.8.7.2 uses different port numbers for responses to invalid requests depending on whether a SIP username exists, which allows remote attackers to enumerate usernames via a series of requests.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://osvdb.org/77597
- http://downloads.asterisk.org/pub/security/AST-2011-013.html
- http://openwall.com/lists/oss-security/2011/12/09/4
- http://openwall.com/lists/oss-security/2011/12/09/3
- http://secunia.com/advisories/47273
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0151.html
- http://www.debian.org/security/2011/dsa-2367
- http://lists.digium.com/pipermail/asterisk-dev/2011-November/052191.html
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Affected Vendor
digium
View all reports →Affected Software
asterisk
Vulnerable Versions:
1.8.0, 1.8.1, 1.8.1.1, 1.8.1.2, 1.8.2, 1.8.2.1, 1.8.2.2, 1.8.2.3, 1.8.2.4, 1.8.3, 1.8.3.1, 1.8.3.2, 1.8.3.3, 1.8.4, 1.8.4.1, 1.8.4.2, 1.8.4.3, 1.8.4.4, 1.8.5, 1.8.5.0, 1.8.6.0, 1.8.7.0, 1.8.7.1, 1.6.2.0, 1.6.2.1, 1.6.2.2, 1.6.2.3, 1.6.2.4, 1.6.2.5, 1.6.2.6, 1.6.2.15, 1.6.2.16, 1.6.2.16.1, 1.6.2.16.2, 1.6.2.17, 1.6.2.17.1, 1.6.2.17.2, 1.6.2.17.3, 1.6.2.18, 1.6.2.19, 1.6.2.20, 1.6.2.21, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.7.1, 1.4.8, 1.4.9, 1.4.10, 1.4.10.1, 1.4.11, 1.4.12, 1.4.12.1, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.16.1, 1.4.16.2, 1.4.17, 1.4.18, 1.4.19, 1.4.19.1, 1.4.19.2, 1.4.20, 1.4.20.1, 1.4.21, 1.4.21.1, 1.4.21.2, 1.4.22, 1.4.22.1, 1.4.22.2, 1.4.23, 1.4.23.1, 1.4.23.2, 1.4.24, 1.4.24.1, 1.4.25, 1.4.25.1, 1.4.26, 1.4.26.1, 1.4.26.2, 1.4.26.3, 1.4.27, 1.4.27.1, 1.4.28, 1.4.29, 1.4.29.1, 1.4.30, 1.4.31, 1.4.32, 1.4.33, 1.4.33.1, 1.4.34, 1.4.35, 1.4.36, 1.4.37, 1.4.38, 1.4.39, 1.4.39.1, 1.4.39.2, 1.4.40, 1.4.40.1, 1.4.40.2, 1.4.41, 1.4.41.1, 1.4.41.2, 1.4.42
Timeline
Official Publish:
December 15th, 2011
Last Modified:
August 7th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.