Unscored severity · published Apr 1, 2013
CVE-2013-2264
The SIP channel driver in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business…
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CVSS
1.3%
EPSS
No
On KEV
Description
The SIP channel driver in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business Edition (BE) C.3.x before C.3.8.1; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones exhibits different behavior for invalid INVITE, SUBSCRIBE, and REGISTER transactions depending on whether the user account exists, which allows remote attackers to enumerate account names by (1) reading HTTP status codes, (2) reading additional text in a 403 (aka Forbidden) response, or (3) observing whether certain retransmissions occur.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BE
Business Edition · Asterisk
c.3.2.2; c.3.3; c.3.3.2 · source: NVD
CA
Certified Asterisk · Asterisk
1.8.15; 1.8.15; 1.8.15; 1.8.15; 1.8.15.0; 1.8.15.0 · source: NVD
DI
Digiumphones · Asterisk
10.0.0; 10.0.0; 10.0.0; 10.0.0; 10.0.0; 10.0.0; +34 more · source: NVD
OS
Open Source · Asterisk
1.8.0; 1.8.0; 1.8.0; 1.8.0; 1.8.0; 1.8.0; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-2264
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-2264
Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2013-003.html
Vendor Advisory
https://issues.asterisk.org/jira/browse/ASTERISK-21013
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