SSRF in Red Hat Single Sign-On 7.4 for RHEL 8



Published: 2021-02-03
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-10770
CWE ID CWE-918
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Red Hat Single Sign-On
Server applications / Directory software, identity management

Vendor Red Hat Inc.

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Server-Side Request Forgery (SSRF)

Risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-10770

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input passed via the "OIDC" parameter. 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 sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Single Sign-On: 7.4.0, 7.4.1, 7.4.2, 7.4.3, 7.4.4

CPE External links

https://access.redhat.com/errata/RHSA-2021:0320

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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