CVE-2021-21343

high

Description

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

References

http://x-stream.github.io/changes.html#1.4.16

https://x-stream.github.io/security.html#workaround

https://github.com/x-stream/xstream/security/advisories/GHSA-74cv-f58x-f9wf

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/[email protected]%3Cdev.jmeter.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.activemq.apache.org%3E

https://security.netapp.com/advisory/ntap-20210430-0002/

https://www.oracle.com//security-alerts/cpujul2021.html

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/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

Details

Source: MITRE

Published: 2021-03-23

Updated: 2022-02-16

Type: CWE-502

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH