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XStream is vulnerable to an Arbitrary Code Execution attack

High
joehni published GHSA-hrcp-8f3q-4w2c Mar 13, 2021

Package

maven com.thoughtworks.xstream (Maven)

Affected versions

< 1.4.16

Patched versions

1.4.16

Description

Impact

The vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types.

Patches

If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

Workarounds

See workarounds for the different versions covering all CVEs.

References

See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for CVE-2021-21351.

Credits

wh1t3p1g G5-RD6@IIE found and reported the issue to XStream and provided the required information to reproduce it.

For more information

If you have any questions or comments about this advisory:

Severity

High

CVE ID

CVE-2021-21351

Credits