Deserialization of Untrusted Data in Fastjson - CVE-2022-25845
Published: July 16, 2022 / Updated: November 8, 2024
Vulnerability identifier: #VU65369
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2022-25845
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Daye
Affected software:
Fastjson
Fastjson
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can pass specially crafted 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-2022-25845
Install updates from vendor's website.
Sources
- https://www.ddosi.org/fastjson-poc/
- https://github.com/alibaba/fastjson/commit/8f3410f81cbd437f7c459f8868445d50ad301f15
- https://github.com/alibaba/fastjson/releases/tag/1.2.83
- https://github.com/alibaba/fastjson/commit/35db4adad70c32089542f23c272def1ad920a60d
- https://github.com/alibaba/fastjson/wiki/security_update_20220523
- https://snyk.io/vuln/SNYK-JAVA-COMALIBABA-2859222