Advisory details:
github_osv / GHSA-4xx7-2cx3-x473
| Advisory ID | github_osv/GHSA-4xx7-2cx3-x473 |
| Aliases | |
| Summary | Duplicate Advisory: Keycloak SAML signature validation flaw # Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-xgfv-xpx8-qhcr. This link is maintained to preserve external references. # Original Description A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. This flaw allows attackers to create crafted responses that can bypass the validation, potentially leading to privilege escalation or impersonation attacks. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.9 |
| Risk | 3.5 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 7.7 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-4xx7-2cx3-x473/GHSA-4xx7-2cx3-x473.json |
| cvssv4 | 5.3 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-4xx7-2cx3-x473/GHSA-4xx7-2cx3-x473.json |
| generic_textual | MODERATE |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
There are no SSVC decisions available.