389-ds-base: 389-ds-base: sasl plain authentication allows privilege escalation to directory manager via stale identity in cyrus sasl auxiliary property
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- 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: total
Summary
A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- redhat-ds:11
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- redhat-ds:11
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- redhat-ds:11
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- redhat-ds:12
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- redhat-ds:12
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- 389-ds-base
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- 389-ds-base
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- 389-ds-base
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- 389-ds-base
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- 389-ds:1.4
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- 389-ds:1.4
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- 389-ds:1.4
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- 389-ds:1.4
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- 389-ds:1.4
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- 389-ds:1.4
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- 389-ds:1.4
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- 389-ds-base
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- 389-ds-base
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- 389-ds-base
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- 389-ds-base
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- 389-ds-base
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- 389-ds-base
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References 19
access.redhat.com
- errata/RHSA-2026:64771
- errata/RHSA-2026:64776
- errata/RHSA-2026:64778
- errata/RHSA-2026:64779
- errata/RHSA-2026:64780
- errata/RHSA-2026:64781
- errata/RHSA-2026:64783
- errata/RHSA-2026:64784
- errata/RHSA-2026:64785
- errata/RHSA-2026:64789
- errata/RHSA-2026:64790
- errata/RHSA-2026:64791
- errata/RHSA-2026:64792
- errata/RHSA-2026:64793
- errata/RHSA-2026:64804
- errata/RHSA-2026:64811
- errata/RHSA-2026:79217
- security/cve/CVE-2026-18922