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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTZ3NjItaHg3ci1tdzY4

XStream is vulnerable to an Arbitrary Code Execution attack

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

XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

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-2021-39154.

Credits

ka1n4t 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:

Permalink: https://github.com/advisories/GHSA-6w62-hx7r-mw68
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTZ3NjItaHg3ci1tdzY4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 1 year ago


CVSS Score: 8.6
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Identifiers: GHSA-6w62-hx7r-mw68, CVE-2021-39154
References: Repository: https://github.com/x-stream/xstream

Affected Packages

maven:com.thoughtworks.xstream:xstream
Dependent packages: 1,882
Dependent repositories: 25,482
Downloads:
Affected Version Ranges: < 1.4.18
Fixed in: 1.4.18
All affected versions: 1.0.1, 1.0.2, 1.1.1, 1.1.2, 1.1.3, 1.2.1, 1.2.2, 1.3.1, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17
All unaffected versions: 1.4.18, 1.4.19, 1.4.20