VDB-223169 · CVE-2023-27597 · GHSA-358f-935m-7p9c

OpenSIPS up to 3.1.7/3.2.4 SIP Message rewrite_ruri memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in OpenSIPS up to 3.1.7/3.2.4. Affected by this issue is the function rewrite_ruri of the component SIP Message Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2023-27597. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSIPS up to 3.1.7/3.2.4 and classified as critical. This issue affects the function rewrite_ruri of the component SIP Message Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. The summary by CVE is:

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.8 and 3.2.5, when a specially crafted SIP message is processed by the function `rewrite_ruri`, a crash occurs due to a segmentation fault. This issue causes the server to crash. It affects configurations containing functions that make use of the affected code, such as the function `setport`. This issue has been fixed in version 3.1.8 and 3.2.5.

The weakness was shared 03/16/2023 as GHSA-358f-935m-7p9c. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-27597 since 03/04/2023. Technical details are known, but no exploit is available.

Upgrading to version 3.1.8 or 3.2.5 eliminates this vulnerability. Applying the patch b2dffe4b5cd81182c9c8eabb6c96aac96c7acfe3 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

OpenSIPS

Version

License

open-source

Website

Product: https://github.com/OpenSIPS/opensips/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSIPS 3.1.8/3.2.5
Patch: b2dffe4b5cd81182c9c8eabb6c96aac96c7acfe3

Timelineinfo

03/04/2023 🔍
03/16/2023 +12 days 🔍
03/16/2023 +0 days 🔍
03/16/2023 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-358f-935m-7p9c
Status: Confirmed

CVE: CVE-2023-27597 (🔍)
GCVE (CVE): GCVE-0-2023-27597
GCVE (VulDB): GCVE-100-223169

Entryinfo

Created: 03/16/2023 08:07
Changes: 03/16/2023 08:07 (53)
Complete: 🔍
Cache ID: 216::103