Unauthenticated SSRF via unchecked request_uri fetching
Published Feb 4, 2022 · Updated Aug 3, 2024
SSRF in Shibboleth Identity Provider OIDC OP plugin before 3.0.4 allows remote attackers to initiate HTTP requests to reachable services. The authorization endpoint accepts an unvalidated request_uri and dereferences it with HTTP GET instead of restricting it to client metadata. No authentication is required; an unparseable response is withheld, but the request can trigger operations on internal or external HTTP services and disclose the IdP version in the User-Agent header.
Summary
What happened
SSRF in Shibboleth Identity Provider OIDC OP plugin before 3.0.4 allows remote attackers to initiate HTTP requests to reachable services. The authorization endpoint accepts an unvalidated request_uri and dereferences it with HTTP GET instead of restricting it to client metadata. No authentication is required; an unparseable response is withheld, but the request can trigger operations on internal or external HTTP services and disclose the IdP version in the User-Agent header.
The record
- CVE
- CVE-2022-24129
- Published
- Feb 4, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 4, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- SBA Research request_uri proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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