#VU52568 Deserialization of Untrusted Data in xstream - CVE-2021-21343
Published: April 26, 2021 / Updated: December 17, 2024
Vulnerability identifier: #VU52568
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-21343
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
xstream
xstream
Software vendor:
XStream
XStream
Description
The vulnerability allows a remote attacker to delete arbitrary files.
The vulnerability exists due to insecure input validation when processing serialized data where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. A remote attacker can pass specially crafted data to the application and delete arbitrary files.
Remediation
Install updates from vendor's website.
External links
- http://x-stream.github.io/changes.html#1.4.16
- https://github.com/x-stream/xstream/security/advisories/GHSA-74cv-f58x-f9wf
- https://lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0@%3Cdev.jmeter.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/04/msg00002.html
- https://x-stream.github.io/CVE-2021-21343.html
- https://x-stream.github.io/security.html#workaround