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
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
- https://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
- https://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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