Undertow: learningpushhandler can lead to remote memory dos attacks
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.3.15.Final, 2.2.34.Final
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- undertow
through 2.3.14.Final
- io.quarkus.http/quarkus-http-core
Version range not reported
- io.undertow/undertow-core
Version range not reported
- eap7-undertow
Version range not reported
- eap7-undertow
Version range not reported
- eap7-undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- quarkus-undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- undertow
Version range not reported
- io.undertow:undertow-coreMaven
From 2.3.0.Alpha1 · fixed in 2.3.15.Final
- io.undertow:undertow-coreMaven
fixed in 2.2.34.Final