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CVE-2011-4597
Published: Dec 15, 2011
Modified: Aug 7, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
77597
vdb-entry
x_refsource_OSVDB
http://downloads.asterisk.org/pub/security/AST-2011-013.html
x_refsource_CONFIRM
[oss-security] 20111209 Re: CVE Request -- Asterisk -- AST-2011-013 and AST-2011-014
mailing-list
x_refsource_MLIST
[oss-security] 20111209 CVE Request -- Asterisk -- AST-2011-013 and AST-2011-014
mailing-list
x_refsource_MLIST
47273
third-party-advisory
x_refsource_SECUNIA
20111222 Exploit for Asterisk Security Advisory AST-2011-013
mailing-list
x_refsource_BUGTRAQ
DSA-2367
vendor-advisory
x_refsource_DEBIAN
[asterisk-dev] 20111108 Summary: SIP, NAT, security concerns, oh my!
mailing-list
x_refsource_MLIST
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