CVE-2020-4587 Memory corruption in Connect:Direct for UNIX

High 8.4 Published 24 Aug 2020 Updated 16 Sep 2024

A local attacker can exploit a stack-based buffer overflow in IBM Sterling Connect:Direct for UNIX to gain root privileges.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-4587?

CVE-2020-4587 is a high-severity memory corruption vulnerability in IBM Connect:Direct for UNIX, published on 24 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM Sterling Connect:Direct for UNIX 4.2.0, 4.3.0, 6.0.0, and 6.1.0 is vulnerable to a stack based buffer ovreflow, caused by improper bounds checking. A local attacker could manipulate CD UNIX to obtain root provileges. IBM X-Force ID: 184578.

Weakness: CWE-787

Which versions are affected by CVE-2020-4587?

It affects 2 products.

Products include Ibm Connect\, Ibm Sterling Connect\.

How do I fix CVE-2020-4587?

No fix has been published for CVE-2020-4587 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-2020-4587 being exploited?

There is no known exploitation of CVE-2020-4587 in the wild and no public exploit code.

CVE-2020-4747 Auth bypass in Sterling Connect:Direct for UNIX High 7.4

Sources

Also known as GHSA-qvjf-c3cc-2mpj.