Vulnerability · Published Mar 15, 2023 · Assigned by GitHub_M

CVE-2023-27599OpenSIPS has vulnerability in the parse_to_param() function

High 7.5

In plain English

A high-severity improper input validation in opensips from OpenSIPS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.0%top 37.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, when the function `append_hf` handles a SIP message with a malformed To header, a call to the function `abort()` is performed, resulting in a crash. This is due to the following check in `data_lump.c:399` in the function `anchor_lump`. An attacker abusing this vulnerability will crash OpenSIPS leading to Denial of Service. It affects configurations containing functions that make use of the affected code, such as the function `append_hf`. This issue has been fixed in versions 3.1.7 and 3.2.4.

Affected products (as reported)

Vendor	Product	Versions
OpenSIPS	opensips	< 3.1.7>= 3.2.0, < 3.2.4

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qvj2-vqrg-f5jx x_refsource_CONFIRM
https://github.com/OpenSIPS/opensips/commit/cb56694d290530ac308f44b453c18120b1c1109d x_refsource_MISC
https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf x_refsource_MISC