MadeYouReset HTTP/2 vulnerability
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 9.4.58, 10.0.26, 11.0.26, 12.0.25, 12.1.0.beta3
- 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
In Eclipse Jetty, versions <=9.4.57, <=10.0.25, <=11.0.25, <=12.0.21, <=12.1.0.alpha2, an HTTP/2 client may trigger the server to send RST_STREAM frames, for example by sending frames that are malformed or that should not be sent in a particular stream state, therefore forcing the server to consume resources such as CPU and memory. For example, a client can open a stream and then send WINDOW_UPDATE frames with window size increment of 0, which is illegal. Per specification https://www.rfc-editor.org/rfc/rfc9113.html#name-window_update , the server should send a RST_STREAM frame. The client can now open another stream and send another bad WINDOW_UPDATE, therefore causing the server to consume more resources than necessary, as this case does not exceed the max number of concurrent streams, yet the client is able to create an enormous amount of streams in a short period of time. The attack can be performed with other conditions (for example, a DATA frame for a closed stream) that cause the server to send a RST_STREAM frame. Links: • https://github.com/jetty/jetty.project/security/advisories/GHSA-mmxm-8w33-wc4h
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- pkg:maven/org.eclipse.jetty.http2/http2-common
From 9.3.0; From 10.0.0; From 11.0.0; From 12.0.0; From 12.1.0.alpha0
- org.eclipse.jetty.http2:http2-commonMaven
From 9.3.0 · fixed in 9.4.58
- org.eclipse.jetty.http2:http2-commonMaven
From 10.0.0 · fixed in 10.0.26
- org.eclipse.jetty.http2:http2-commonMaven
From 11.0.0 · fixed in 11.0.26
- org.eclipse.jetty.http2:jetty-http2-commonMaven
From 12.0.0 · fixed in 12.0.25
- org.eclipse.jetty.http2:jetty-http2-commonMaven
From 12.1.0.alpha0 · fixed in 12.1.0.beta3