CVE-2020-26991 Null dereference in JT2Go

High 8.8 Published Updated

Attackers can execute arbitrary code by tricking users into opening malicious ASM files in Siemens JT2Go or Teamcenter Visualization.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-26991?

CVE-2020-26991 is a high-severity vulnerability in Siemens Jt2go, published on 12 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in JT2Go (All versions < V13.1.0.2), Teamcenter Visualization (All versions < V13.1.0.2). Affected applications lack proper validation of user-supplied data when parsing ASM files. This could lead to pointer dereferences of a value obtained from untrusted source. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-11899)

Weakness: CWE-476, CWE-822

Which versions are affected by CVE-2020-26991?

It affects 2 products.

Products include Siemens Jt2go, Siemens Teamcenter Visualization.

How do I fix CVE-2020-26991?

No fix has been published for CVE-2020-26991 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-26991 being exploited?

There is no known exploitation of CVE-2020-26991 in the wild and no public exploit code.

All Siemens Jt2go vulnerabilities

Sources

Also known as GHSA-qrx3-cfvv-p9x8.

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