Server-Side Request Forgery (SSRF) in Netmask - CVE-2021-29418,CVE-2021-28918

 

Server-Side Request Forgery (SSRF) in Netmask - CVE-2021-29418,CVE-2021-28918

Published: March 29, 2021 / Updated: April 7, 2021


Vulnerability identifier: #VU51767
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2021-29418,CVE-2021-28918
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to insufficient validation of user-supplied input in octal literals. A remote attacker 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 intranets, VPNs, containers, adjacent VPC instances, or LAN hosts.


Affected software

Netmask
Red Hat Advanced Cluster Management for Kubernetes
IBM Cloud Automation Manager

How to mitigate CVE-2021-29418,CVE-2021-28918

Install updates from vendor's website.

Netmask - update to 2.0.1
Red Hat Advanced Cluster Management for Kubernetes - update to 2.2.3

External References

Related Security Bulletins