CVE-2017-11103
- State
- Published
- Severity
- Not scored
- Published
- Jul 13, 2017
- Updated
- Aug 5, 2024
- Reserved
- Jul 7, 2017
Description
Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in 'enc_part' instead of the unencrypted version stored in 'ticket'. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://support.apple.com/HT208221
- DSA-3912vendor-advisory
- https://support.apple.com/HT208144
- https://www.orpheus-lyre.info/
- FreeBSD-SA-17:05vendor-advisory
- 99551vdb-entry
- 1039427vdb-entry
- https://www.samba.org/samba/security/CVE-2017-11103.html
- 1038876vdb-entry
- https://support.apple.com/HT208112
- https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0
- http://www.h5l.org/advisories.html?show=2017-07-11
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.