CVE-2017-11103
HIGH8.1EPSS 5.6%heimdal - security update
發布日:2017/7/13修改日:2026/4/28
描述
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.
受影響套件(7)
- Alpine/heimdalfrom 0, < 7.4.0-r0
- Alpine/sambafrom 0, < 4.2.14-r4
- Debian/heimdalfrom 0, < 1.6~rc2+dfsg-9+deb8u1
- Debian/heimdalfrom 0, < 7.4.0.dfsg.1-1
- Debian/heimdalfrom 0, < 1.6~git20120403+dfsg1-2+deb7u1
- Debian/sambafrom 0, < 2:4.6.5+dfsg-4
- Debian/sambafrom 0, < 2:4.2.14+dfsg-0+deb8u7
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |