Server-Side Request Forgery (SSRF) in Amazon EC2 - CVE-2020-2091

 

Server-Side Request Forgery (SSRF) in Amazon EC2 - CVE-2020-2091

Published: January 16, 2020


Vulnerability identifier: #VU24345
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-2091
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Jenkins
Affected software:
Amazon EC2

Detailed vulnerability description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to the affected software does not perform permission checks in methods performing form validation. A remote user with Overall/Read access can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.


How to mitigate CVE-2020-2091

Install updates from vendor's website.

Sources