CVE-2021-31607 Command Injection in SaltStack Salt

What is CVE-2021-31607?

CVE-2021-31607 is a high-severity command injection vulnerability in Fedoraproject Fedora, published on 23 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely).

Weakness: CWE-78

Which versions are affected by CVE-2021-31607?

3 open source packages ship an affected version, including salt. It affects 2 products.

Products include Fedoraproject Fedora, Saltstack Salt.

How do I fix CVE-2021-31607?

Upgrade salt to 3003rc1 or later.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-31607 being exploited?

There is no known exploitation of CVE-2021-31607 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as GHSA-hcjf-rp5h-g5h3, PYSEC-2021-56, SUSE-SU-2021:14753-1, SUSE-SU-2021:1688-1, SUSE-SU-2021:1951-1, SUSE-SU-2021:2102-1 and 2 more.