CVE-2021-34326 Memory corruption in JT2Go
Attackers can execute arbitrary code by tricking users into opening malicious PAR files in Siemens CAD applications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-34326?
CVE-2021-34326 is a high-severity memory corruption vulnerability in Siemens Jt2go, published on 13 Jul 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability has been identified in JT2Go (All versions < V13.2), Solid Edge SE2021 (All Versions < SE2021MP5), Teamcenter Visualization (All versions < V13.2). The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13422)
Which versions are affected by CVE-2021-34326?
It affects 3 products.
Products include Siemens Jt2go, Siemens Solid Edge, Siemens Teamcenter Visualization.
How do I fix CVE-2021-34326?
No fix has been published for CVE-2021-34326 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-34326 being exploited?
There is no known exploitation of CVE-2021-34326 in the wild and no public exploit code.
Other vulnerabilities in Siemens Jt2go
Sources
Also known as GHSA-cm7m-hh39-78r7.