CVE-2021-39144 XStream is vulnerable to a Remote Command Execution attack

2021-08-2300:00:00

CWE-94

CWE-502

GitHub_M

www.cve.org

8.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9 High

AI Score

Confidence

High

0.969 High

EPSS

Percentile

99.7%

JSON

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the 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.

CNA Affected

[
  {
    "vendor": "x-stream",
    "product": "xstream",
    "versions": [
      {
        "version": "< 1.4.18 ",
        "status": "affected"
      }
    ]
  }
]