MEDIUM 6.5
GHSA-xf62-wr5p-5p95
Apache CXF OAuth2 HTTP Response Splitting via WWW-Authenticate Realm Injection
Quick fix
GHSA-xf62-wr5p-5p95 — org.apache.cxf:cxf-rt-rs-security-oauth2: upgrade to the fixed version with the command below.
# pom.xml: bump <version>4.2.2</version> for org.apache.cxf:cxf-rt-rs-security-oauth2Details
A CRLF injection vulnerability exists in the OAuth2 AuthorizationUtils class. When constructing the WWW-Authenticate response header, the 'realm' parameter is concatenated without sanitizing Carriage Return (CR) and Line Feed (LF) characters. If an attacker can control the realm value, they can inject arbitrary HTTP headers or split the HTTP response entirely. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.
Are you affected?
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Affected packages
Maven / org.apache.cxf:cxf-rt-rs-security-oauth2
Introduced in:
4.2.0 Fixed in: 4.2.2 Fix
# pom.xml: bump <version>4.2.2</version> for org.apache.cxf:cxf-rt-rs-security-oauth2 Maven / org.apache.cxf:cxf-rt-rs-security-oauth2
Introduced in:
0 Fixed in: 4.1.7 Fix
# pom.xml: bump <version>4.1.7</version> for org.apache.cxf:cxf-rt-rs-security-oauth2