Critical severity · published Apr 15, 2022
CVE-2022-26499
An SSRF issue was discovered in Asterisk through 19.x
9.1
CVSS
7.7%
EPSS
No
On KEV
Description
An SSRF issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it's possible to send arbitrary requests (such as GET) to interfaces such as localhost by using the Identity header. This is fixed in 16.25.2, 18.11.2, and 19.3.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.7% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asterisk · Digium
16.15.0 through 16.25.1; 18.0 before 18.11.2; 19.0.0 through 19.3.1 · source: NVD
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-26499
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-26499
Patch
http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.html
Vendor Advisory
https://downloads.asterisk.org/pub/security/
Patch
https://downloads.asterisk.org/pub/security/AST-2022-002.html
Issue Tracking
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
Third Party Advisory
https://www.debian.org/security/2022/dsa-5285
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