CVE-2022-26499
CRITICALCVSS 9.1/10EPSS 7.27%
Last modified
CVE-2022-26499 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 7.27% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | >= 16.15.0, <= 16.25.1 |
| Digium | Asterisk | >= 18.0, < 18.11.2 |
| Digium | Asterisk | >= 19.0.0, <= 19.3.1 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.htmlPatch, Third Party Advisory, VDB Entry
- https://downloads.asterisk.org/pub/security/Vendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2022-002.htmlPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlIssue Tracking, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5285Third Party Advisory
- http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.htmlPatch, Third Party Advisory, VDB Entry
- https://downloads.asterisk.org/pub/security/Vendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2022-002.htmlPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlIssue Tracking, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5285Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-26499?
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.
How severe is CVE-2022-26499?
CVE-2022-26499 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 7.27% probability of exploitation in the next 30 days.
How do I fix CVE-2022-26499?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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