GHSA-69fp-7c8p-crjr CVE-2024-4540
Keycloak exposes sensitive information in Pushed Authorization Requests (PAR)
- Severity
- 7.5 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.55%
- Chance of exploitation in the next 30 days. Higher than 46.10% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- CWE-922 Insecure Storage of Sensitive Information
- Fix
24.0.5- Upgrade org.keycloak:keycloak-services to this version or later
Description
A flaw was found in Keycloak in the OAuth 2.0 Pushed Authorization Requests (PAR). Client provided parameters were found to be included in plain text in the KC_RESTART cookie returned by the authorization server's HTTP response to a request_uri authorization request. This could lead to an information disclosure vulnerability.
Affected versions
Maven
| Package | Vulnerable | Fixed in |
|---|---|---|
| org.keycloak:keycloak-services | < 24.0.5 |
24.0.5 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
org.keycloak:keycloak-services Maven → 24.0.5
- maven
<dependency><groupId>org.keycloak</groupId><artifactId>keycloak-services</artifactId><version>24.0.5</version></dependency>- gradle
implementation("org.keycloak:keycloak-services:24.0.5")
Severity breakdown
CVSS 3.1 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Weakness
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
How to prevent it
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
CWE-922: Insecure Storage of Sensitive Information
The product stores sensitive information without properly limiting read or write access by unauthorized actors.
References
Advisories
Packages
Other links
- github.com/keycloak/keycloak/security/advisories/GHSA-69fp-7c8p-crjr
- github.com/keycloak/keycloak/commit/2191cc26ae6deb52eeaf74046027b65804d16fd0
- access.redhat.com/errata/RHSA-2024:3566
- access.redhat.com/errata/RHSA-2024:3567
- access.redhat.com/errata/RHSA-2024:3568
- access.redhat.com/errata/RHSA-2024:3570
- access.redhat.com/errata/RHSA-2024:3572
- access.redhat.com/errata/RHSA-2024:3573
- access.redhat.com/errata/RHSA-2024:3574
- access.redhat.com/errata/RHSA-2024:3575
- access.redhat.com/errata/RHSA-2024:3576
- access.redhat.com/security/cve/CVE-2024-4540
- bugzilla.redhat.com/show_bug.cgi
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-v3f7-2p4r-mwfw Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass | High | Also affects org.keycloak:keycloak-services |
| GHSA-9jrw-8xf7-xqhq Keycloak vulnerable to information disclosure through arbitrary filesystem path probing | Medium | Also affects org.keycloak:keycloak-services |
| GHSA-w3p3-7cjg-vgfw Keycloak allows unauthorized access to resources via uma permission ticket bypass | Medium | Also affects org.keycloak:keycloak-services |
| GHSA-f5p5-6xmx-p252 Keycloak vulnerable to authorization bypass via incorrect uri comparison | High | Also affects org.keycloak:keycloak-services |
| GHSA-r7rc-c989-86g6 Keycloak: Attacker can re-enable and take over disabled clients via registration access token | Medium | Also affects org.keycloak:keycloak-services |
| GHSA-4gv3-mc9p-5wqc Keycloak: Unauthenticated account takeover via reset-credentials flow bypass | Critical | Also affects org.keycloak:keycloak-services |
| GHSA-6g26-7cx5-mrrg Keycloak: Information disclosure due to user profile permission bypass | Low | Also affects org.keycloak:keycloak-services |
| GHSA-cpf7-j4cf-vqx4 Keycloak has an Out-of-bounds Read | Medium | Also affects org.keycloak:keycloak-services |
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