GHSA-cvg2-7c3j-g36j CVE-2023-6134
Keycloak vulnerable to reflected XSS via wildcard in OIDC redirect_uri
- Severity
- 4.6 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 1.32%
- Chance of exploitation in the next 30 days. Higher than 70.82% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
- Fix
23.0.3- Upgrade org.keycloak:keycloak-services to this version or later
Description
Keycloak prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This could permit an attacker to submit a specially crafted request leading to XSS or possibly further attacks.
Affected versions
Maven
| Package | Vulnerable | Fixed in |
|---|---|---|
| org.keycloak:keycloak-services | < 23.0.3 |
23.0.3 |
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 → 23.0.3
- maven
<dependency><groupId>org.keycloak</groupId><artifactId>keycloak-services</artifactId><version>23.0.3</version></dependency>- gradle
implementation("org.keycloak:keycloak-services:23.0.3")
Severity breakdown
CVSS 3.1 4.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Weakness
CWE-75: Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
The product does not adequately filter user-controlled input for special elements with control implications.
How to prevent it
- Requirements: Programming languages and supporting technologies might be chosen which are not subject to these issues.
- Implementation: Utilize an appropriate mix of allowlist and denylist parsing to filter special element syntax from all input.
References
Advisories
Packages
Other links
- github.com/keycloak/keycloak/security/advisories/GHSA-cvg2-7c3j-g36j
- github.com/keycloak/keycloak/commit/15a21bf8e4fb71f006ba9caf25b9c9d1d152cd20
- access.redhat.com/errata/RHSA-2023:7854
- access.redhat.com/errata/RHSA-2023:7855
- access.redhat.com/errata/RHSA-2023:7856
- access.redhat.com/errata/RHSA-2023:7857
- access.redhat.com/errata/RHSA-2023:7858
- access.redhat.com/errata/RHSA-2023:7860
- access.redhat.com/errata/RHSA-2023:7861
- access.redhat.com/security/cve/CVE-2023-6134
- bugzilla.redhat.com/show_bug.cgi
- access.redhat.com/errata/RHSA-2024:0798
- access.redhat.com/errata/RHSA-2024:0799
- access.redhat.com/errata/RHSA-2024:0800
- access.redhat.com/errata/RHSA-2024:0801
- access.redhat.com/errata/RHSA-2024:0804
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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