Authentication bypass via ambiguous XML signature paths
Published Oct 9, 2024 · Updated Oct 11, 2024
XML signature bypass in SSOReady Docker images before 7f92a06 allows remote attackers to bypass SAML authentication using certain IdP-signed messages. The internal/saml/dsig path matcher accepts the first of multiple XML children matching the same signature path instead of rejecting ambiguity, allowing parsers to resolve signed content differently. Exploitation requires access to certain IdP-signed messages and a self-hosted deployment; the public hosted service is unaffected.
Summary
What happened
XML signature bypass in SSOReady Docker images before 7f92a06 allows remote attackers to bypass SAML authentication using certain IdP-signed messages. The internal/saml/dsig path matcher accepts the first of multiple XML children matching the same signature path instead of rejecting ambiguity, allowing parsers to resolve signed content differently. Exploitation requires access to certain IdP-signed messages and a self-hosted deployment; the public hosted service is unaffected.
The record
- CVE
- CVE-2024-47832
- Published
- Oct 9, 2024
- Updated
- Oct 11, 2024
- Vendor
- SSOReady
- Product
- SSOReady
- Classifications
- CWE-347, T1606.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 9, 2024CVE publishedPublication date reported by the CVE source.
- Oct 11, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.0.0-20241009153838-7f92a0630439
- Affected versionversion=0 <7f92a06
What conditions does exploitation require?
What is affected?
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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