RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 3.13.15, 4.0.22, 4.1.11, 4.2.6, 4.3.1
- 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: no
- Technical impact: partial
Summary
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom() to convert to a tag atom. The token signature is verified first, so the attacker cannot forge scopes , but in IdP configurations where scope content is user-influenced, each login with a novel tag value leaks one In deployments where users can influence the scopes included in their IdP-issued JWT rabbitmqauthbackendoauth2 enabled IdP permits attacker-influenced scope values in signed tokens. This issue is fixed in versions 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- rabbitmq rabbitmq-server
From 3.13.0 · fixed in 3.13.15; From 4.0.0 · fixed in 4.0.22; From 4.1.0 · fixed in 4.1.11; From 4.2.0 · fixed in 4.2.6; From 4.3.0 · fixed in 4.3.1
- rabbitmqBitnami
From 3.13.0 · fixed in 3.13.15; From 4.0.0 · fixed in 4.0.22; From 4.1.0 · fixed in 4.1.11; From 4.2.0 · fixed in 4.2.6; From 4.3.0 · fixed in 4.3.1