National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-11103 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.1 HIGH
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.debian.org/security/2017/dsa-3912
http://www.h5l.org/advisories.html?show=2017-07-11 Vendor Advisory
http://www.securityfocus.com/bid/99551 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038876 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039427
https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0 Vendor Advisory
https://support.apple.com/HT208112
https://support.apple.com/HT208144
https://support.apple.com/HT208221
https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc Third Party Advisory
https://www.orpheus-lyre.info/ Third Party Advisory
https://www.samba.org/samba/security/CVE-2017-11103.html Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Insufficient Verification of Data Authenticity (CWE-345)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:h5l:heimdal:0.0a:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:0.8:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.0:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.0.1:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.3.2:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.3.3:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.4:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.5:*:*:*:*:*:*:*
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 cpe:2.3:a:h5l:heimdal:1.5.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:1.5.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:7.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:7.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:h5l:heimdal:7.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:freebsd:freebsd:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:a:samba:samba:4.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.12:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.13:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.14:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.15:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.16:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.17:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.18:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.19:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.20:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.21:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.22:*:*:*:*:*:*:*
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 cpe:2.3:a:samba:samba:4.0.23:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.24:*:*:*:*:*:*:*
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 cpe:2.3:a:samba:samba:4.0.25:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.0.26:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.12:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.13:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.14:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.15:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.16:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.17:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.18:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.19:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.20:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.21:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.22:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.1.23:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.0:rc1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.0:rc2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.0:rc3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.0:rc4:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.12:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.13:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.2.14:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:samba:samba:4.3.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with

Showing 100 of 127 CPEs, view all CPEs here.

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-11103
NVD Published Date:
07/13/2017
NVD Last Modified:
11/13/2017