Deserialization of Untrusted Data in xstream - CVE-2021-29505
Published: July 12, 2021 / Updated: December 17, 2024
Vulnerability identifier: #VU54675
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-29505
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: XStream
Affected software:
xstream
xstream
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data. A remote user can pass specially crafted XML data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-29505
Install updates from vendor's website.
Sources
- https://github.com/x-stream/xstream/security/advisories/GHSA-7chv-rrw6-w6fc
- https://github.com/x-stream/xstream/commit/24fac82191292c6ae25f94508d28b9823f83624f
- https://lists.apache.org/thread.html/r8ee51debf7fd184b6a6b020dc31df25118b0aa612885f12fbe77f04f@%3Cdev.jmeter.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/07/msg00004.html