2021-34332 | Siemens JT2Go/Teamcenter Visualization BMP File BMP_Loader.dll infinite loop (ssa-483182)

By Max On Jul 16, 2021

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.
4.1	$0-$5k	0.21

A vulnerability, which was classified as problematic, has been found in Siemens JT2Go and Teamcenter Visualization up to 13.1. This issue affects some unknown processing in the library BMP_Loader.dll of the component BMP File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-835. Impacted is availability. The summary by CVE is:

A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The BMP_Loader.dll library in affected applications lacks proper validation of user-supplied data when parsing BMP files. A malformed input file could result in an infinite loop condition that leads to denial of service condition. An attacker could leverage this vulnerability to consume excessive resources. (CNVD-C-2021-79300)

The weakness was presented 07/13/2021 as ssa-483182. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2021-34332 since 06/08/2021. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/16/2021). MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 13.2 eliminates this vulnerability.

Vendor