Vulnerability CVE-2021-39148


Published: 2021-08-23

Description:
XStream is a simple library to serialize objects to XML and back again. In affected versions this 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. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Type:

CWE-502

(Deserialization of Untrusted Data)

CVSS2 => (AV:N/AC:M/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6/10
6.4/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Xstream project -> Xstream 

 References:
https://github.com/x-stream/xstream/security/advisories/GHSA-qrx8-8545-4wg2
https://x-stream.github.io/CVE-2021-39148.html

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