CVE-2019-4447 Privilege escalation in DB2 High Performance Unload load for LUW

High 8.4 Published 26 Aug 2019 Updated 16 Sep 2024

A low-privileged user can gain root access by manipulating the PATH variable to execute arbitrary commands via a setuid binary.

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-2019-4447?

CVE-2019-4447 is a high-severity vulnerability in IBM DB2 High Performance Unload load for LUW, published on 26 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM DB2 High Performance Unload load for LUW 6.1, 6.1.0.1, 6.1.0.1 IF1, 6.1.0.2, 6.1.0.2 IF1, and 6.1.0.1 IF2 db2hpum_debug is a setuid root binary which trusts the PATH environment variable. A low privileged user can execute arbitrary commands as root by altering the PATH variable to point to a user controlled location. When a crash is induced the trojan gdb command is executed. IBM X-Force ID: 163488.

Weakness: CWE-427

Which versions are affected by CVE-2019-4447?

It affects 1 product.

Products include Ibm Db2 High Performance Unload Load.

How do I fix CVE-2019-4447?

No fix has been published for CVE-2019-4447 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-4447 being exploited?

There is no known exploitation of CVE-2019-4447 in the wild and no public exploit code.

Sources

Also known as GHSA-jrvj-hjx2-hc4m.