CVE-2019-18276 Privilege escalation in n/a

What is CVE-2019-18276?

CVE-2019-18276 is a high-severity vulnerability in Netapp Hci Management Node, published on 28 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. However, it does so incorrectly. On Linux and other systems that support "saved UID" functionality, the saved UID is not dropped. An attacker with command execution in the shell can use "enable -f" for runtime loading of a new builtin, which can be a shared object that calls setuid() and therefore regains privileges. However, binaries running with an effective UID of 0 are unaffected.

Weakness: CWE-273

Which versions are affected by CVE-2019-18276?

It affects 5 products.

Products include Gnu Bash, Netapp Hci Management Node, Netapp Oncommand Unified Manager, Netapp Solidfire, Oracle Communications Cloud Native Core Policy.

How do I fix CVE-2019-18276?

Apply the vendor's patch.

Is CVE-2019-18276 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-18276 exists.

Public exploit code: 2 proofs of concept on GitHub.

Other vulnerabilities in Netapp Hci Management Node

• CVE-2014-6278 GNU Bash OS Command Injection Exploited High 8.8
• CVE-2014-7186 Memory corruption in n/a Critical 10.0
• CVE-2014-7187 Memory corruption in n/a Critical 10.0
• CVE-2014-6277 Code injection in n/a Critical 10.0
• CVE-2022-3715 Memory corruption in bash High 7.8

All Netapp Hci Management Node vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLSA-2022-1650909007, CLSA-2022-1650910003, CLSA-2022-1651685129, CLSA-2025-1761326171, DEBIAN-CVE-2019-18276, GHSA-jcxc-5f87-vq5m and 4 more.