Vulnerability Details : CVE-2021-26715
The OpenID Connect server implementation for MITREid Connect through 1.3.3 contains a Server Side Request Forgery (SSRF) vulnerability. The vulnerability arises due to unsafe usage of the logo_uri parameter in the Dynamic Client Registration request. An unauthenticated attacker can make a HTTP request from the vulnerable server to any address in the internal network and obtain its response (which might, for example, have a JavaScript payload for resultant XSS). The issue can be exploited to bypass network boundaries, obtain sensitive data, or attack other hosts in the internal network.
Vulnerability category: Cross site scripting (XSS)Server-side request forgery (SSRF)
Products affected by CVE-2021-26715
- cpe:2.3:a:mitreid:connect:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26715
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26715
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:P/A:N |
10.0
|
4.9
|
NIST | |
|
9.1
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2021-26715
-
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26715
-
https://github.com/mitreid-connect/OpenID-Connect-Java-Spring-Server/releases
Releases · mitreid-connect/OpenID-Connect-Java-Spring-Server · GitHubThird Party Advisory
-
https://portswigger.net/research/hidden-oauth-attack-vectors
Hidden OAuth attack vectors | PortSwigger ResearchExploit;Third Party Advisory
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