CVE-2021-35218 Chart Endpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability

What is CVE-2021-35218?

CVE-2021-35218 is a high-severity unsafe deserialization vulnerability in SolarWinds Patch Manager, published on 1 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Deserialization of Untrusted Data in the Web Console Chart Endpoint can lead to remote code execution. An unauthorized attacker who has network access to the Orion Patch Manager Web Console could potentially exploit this and compromise the server

Weakness: CWE-502

Which versions are affected by CVE-2021-35218?

It affects 1 product.

Products include Solarwinds Orion Platform.

How do I fix CVE-2021-35218?

No fix has been published for CVE-2021-35218 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2021-35218 being exploited?

There is no known exploitation of CVE-2021-35218 in the wild and no public exploit code.

Other vulnerabilities in SolarWinds Patch Manager

• CVE-2020-10148 SolarWinds Orion Authentication Bypass Exploited Critical 9.8
• CVE-2021-27258 Privilege escalation in Orion Platform Critical 9.8
• CVE-2021-25274 Deserialization in n/a Critical 9.8
• CVE-2019-9546 Privilege escalation in n/a Critical 9.8
• CVE-2020-13169 Cross-site scripting in n/a Critical 9.0

Sources

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

Also known as GHSA-8j3p-xj5v-7gpf.