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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTc0Y3YtZjU4eC1mOXdm
XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling as long as the executing process has sufficient rights
Impact
The processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in the deletion of a file on the local host. 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-2021-21343.
Credits
钟潦贵 (Liaogui Zhong) 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:
- Open an issue in XStream
- Contact us at XStream Google Group
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTc0Y3YtZjU4eC1mOXdm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: 10 months ago
CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Identifiers: GHSA-74cv-f58x-f9wf, CVE-2021-21343
References:
- https://github.com/x-stream/xstream/security/advisories/GHSA-74cv-f58x-f9wf
- https://x-stream.github.io/security.html#workaround
- http://x-stream.github.io/changes.html#1.4.16
- https://nvd.nist.gov/vuln/detail/CVE-2021-21343
- https://x-stream.github.io/CVE-2021-21343.html
- https://lists.debian.org/debian-lts-announce/2021/04/msg00002.html
- https://lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0@%3Cdev.jmeter.apache.org%3E
- https://lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd@%3Cusers.activemq.apache.org%3E
- https://security.netapp.com/advisory/ntap-20210430-0002/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/
- https://www.debian.org/security/2021/dsa-5004
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://github.com/advisories/GHSA-74cv-f58x-f9wf
Affected Packages
maven:com.thoughtworks.xstream:xstream
Versions: < 1.4.16Fixed in: 1.4.16