CVE-2017-11103: High severity macos high sierra vulnerability
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 krb5extractticket() the KDC-REP service name must be obtained from the encrypted version stored in 'encpart' 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.
Other sources
Heimdal. A validation issue existed in the handling of the KDC-REP service name. This issue was addressed through improved validation.
Heimdal. A validation issue existed in the handling of the KDC-REP service name. This issue was addressed with improved validation.
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2017-13832
- CVE-2016-0736
- CVE-2016-2161
- CVE-2016-5387
- CVE-2016-8740
- CVE-2016-8743
- CVE-2017-13909
- CVE-2017-13809
- CVE-2017-7084
- CVE-2017-7074
- CVE-2017-13820
- CVE-2017-13807
- CVE-2017-7143
- CVE-2017-13829
- CVE-2017-13833
- CVE-2017-7083
- CVE-2017-13821
- CVE-2017-0381
- CVE-2017-13825
- CVE-2017-13890
- CVE-2017-13851
- CVE-2017-7138
- CVE-2017-7121
- CVE-2017-7122
- CVE-2017-7123
- CVE-2017-7124
- CVE-2017-7125
- CVE-2017-7126
- CVE-2017-13815
- CVE-2017-13828
- CVE-2017-13811
- CVE-2017-13835
- CVE-2017-11103
- CVE-2017-13819
- CVE-2017-13830
- CVE-2017-13814
- CVE-2017-13831
- CVE-2017-13837
- CVE-2017-13906
- CVE-2017-7077
- CVE-2017-7119
- CVE-2017-7114
- CVE-2017-13810
- CVE-2017-13817
- CVE-2017-13818
- CVE-2017-13836
- CVE-2017-13841
- CVE-2017-13840
- CVE-2017-13842
- CVE-2017-13782
- CVE-2017-13843
- CVE-2017-13854
- CVE-2017-13834
- CVE-2017-13873
- CVE-2017-13827
- CVE-2017-13813
- CVE-2017-13816
- CVE-2017-13812
- CVE-2016-4736
- CVE-2017-7086
- CVE-2017-1000373
- CVE-2016-9063
- CVE-2017-9233
- CVE-2018-4302
- CVE-2017-5130
- CVE-2017-7376
- CVE-2017-9050
- CVE-2017-9049
- CVE-2017-7141
- CVE-2017-7078
- CVE-2017-6451
- CVE-2017-6452
- CVE-2017-6455
- CVE-2017-6458
- CVE-2017-6459
- CVE-2017-6460
- CVE-2017-6462
- CVE-2017-6463
- CVE-2017-6464
- CVE-2016-9042
- CVE-2017-13824
- CVE-2017-13846
- CVE-2017-10140
- CVE-2017-13822
- CVE-2017-7132
- CVE-2017-13823
- CVE-2017-13808
- CVE-2017-13838
- CVE-2017-7082
- CVE-2017-7080
- CVE-2017-13908
- CVE-2017-13839
- CVE-2017-13910
- CVE-2017-10989
- CVE-2017-7128
- CVE-2017-7129
- CVE-2017-7130
- CVE-2017-7127
- CVE-2016-9840
- CVE-2016-9841
- CVE-2016-9842
- CVE-2016-9843
- CVE-2017-3167
- CVE-2017-3169
- CVE-2017-7659
- CVE-2017-7668
- CVE-2017-7679
- CVE-2017-9788
- CVE-2017-9789
- CVE-2017-13786
- CVE-2017-13800
- CVE-2017-1000100
- CVE-2017-1000101
- CVE-2017-13801
- CVE-2017-13799
- CVE-2017-13852
- CVE-2017-5969
- CVE-2018-4390
- CVE-2018-4391
- CVE-2017-13907
- CVE-2017-7170
- CVE-2017-7150
- CVE-2017-13804
- CVE-2017-11108
- CVE-2017-11541
- CVE-2017-11542
- CVE-2017-11543
- CVE-2017-12893
- CVE-2017-12894
- CVE-2017-12895
- CVE-2017-12896
- CVE-2017-12897
- CVE-2017-12898
- CVE-2017-12899
- CVE-2017-12900
- CVE-2017-12901
- CVE-2017-12902
- CVE-2017-12985
- CVE-2017-12986
- CVE-2017-12987
- CVE-2017-12988
- CVE-2017-12989
- CVE-2017-12990
- CVE-2017-12991
- CVE-2017-12992
- CVE-2017-12993
- CVE-2017-12994
- CVE-2017-12995
- CVE-2017-12996
- CVE-2017-12997
- CVE-2017-12998
- CVE-2017-12999
- CVE-2017-13000
- CVE-2017-13001
- CVE-2017-13002
- CVE-2017-13003
- CVE-2017-13004
- CVE-2017-13005
- CVE-2017-13006
- CVE-2017-13007
- CVE-2017-13008
- CVE-2017-13009
- CVE-2017-13010
- CVE-2017-13011
- CVE-2017-13012
- CVE-2017-13013
- CVE-2017-13014
- CVE-2017-13015
- CVE-2017-13016
- CVE-2017-13017
- CVE-2017-13018
- CVE-2017-13019
- CVE-2017-13020
- CVE-2017-13021
- CVE-2017-13022
- CVE-2017-13023
- CVE-2017-13024
- CVE-2017-13025
- CVE-2017-13026
- CVE-2017-13027
- CVE-2017-13028
- CVE-2017-13029
- CVE-2017-13030
- CVE-2017-13031
- CVE-2017-13032
- CVE-2017-13033
- CVE-2017-13034
- CVE-2017-13035
- CVE-2017-13036
- CVE-2017-13037
- CVE-2017-13038
- CVE-2017-13039
- CVE-2017-13040
- CVE-2017-13041
- CVE-2017-13042
- CVE-2017-13043
- CVE-2017-13044
- CVE-2017-13045
- CVE-2017-13046
- CVE-2017-13047
- CVE-2017-13048
- CVE-2017-13049
- CVE-2017-13050
- CVE-2017-13051
- CVE-2017-13052
- CVE-2017-13053
- CVE-2017-13054
- CVE-2017-13055
- CVE-2017-13687
- CVE-2017-13688
- CVE-2017-13689
- CVE-2017-13690
- CVE-2017-13725
- CVE-2017-13077
- CVE-2017-13078
- CVE-2017-13080
- CVE-2017-13863
- CVE-2017-7131
- CVE-2017-7088
- CVE-2017-7072
- CVE-2017-7140
- CVE-2017-7148
- CVE-2017-7097
- CVE-2017-7118
- CVE-2017-7133
- CVE-2017-7075
- CVE-2017-7139
- CVE-2017-13806
- CVE-2017-7085
- CVE-2017-13877
- CVE-2017-7146
- CVE-2017-6211
- CVE-2017-7145
- CVE-2017-7081
- CVE-2017-7087
- CVE-2017-7091
- CVE-2017-7092
- CVE-2017-7093
- CVE-2017-7094
- CVE-2017-7095
- CVE-2017-7096
- CVE-2017-7098
- CVE-2017-7099
- CVE-2017-7100
- CVE-2017-7102
- CVE-2017-7104
- CVE-2017-7107
- CVE-2017-7111
- CVE-2017-7117
- CVE-2017-7120
- CVE-2017-7089
- CVE-2017-7090
- CVE-2017-7106
- CVE-2017-7109
- CVE-2017-7144
- CVE-2017-7142
- CVE-2017-11120
- CVE-2017-11121
- CVE-2017-7103
- CVE-2017-7105
- CVE-2017-7108
- CVE-2017-7110
- CVE-2017-7112
- CVE-2017-7115
- CVE-2017-7116
- CVE-2017-11122
Frequently Asked Questions
What is CVE-2017-11103?
CVE-2017-11103 is a vulnerability in Heimdal that allows remote attackers to impersonate services with Orpheus' Lyre attacks.
How does CVE-2017-11103 affect macOS High Sierra?
CVE-2017-11103 affects macOS High Sierra versions up to 10.13.1.
How does CVE-2017-11103 affect Apple Sierra?
CVE-2017-11103 may affect Apple Sierra, but specific versions are not mentioned.
How does CVE-2017-11103 affect Apple El Capitan?
CVE-2017-11103 may affect Apple El Capitan, but specific versions are not mentioned.
How does CVE-2017-11103 affect Apple iOS?
CVE-2017-11103 affects Apple iOS versions up to 11.
How does CVE-2017-11103 affect Heimdal Project Heimdal?
CVE-2017-11103 affects Heimdal Project Heimdal versions up to 7.4.0.
How does CVE-2017-11103 affect FreeBSD?
CVE-2017-11103 may affect FreeBSD, but specific versions are not mentioned.
How does CVE-2017-11103 affect Samba?
CVE-2017-11103 affects Samba versions between 4.0.0 and 4.4.15, 4.5.0 and 4.5.12, and 4.6.0 and 4.6.6.
How does CVE-2017-11103 affect Apple iPhone OS?
CVE-2017-11103 affects Apple iPhone OS up to version 11.0.
How does CVE-2017-11103 affect Apple Mac OS X?
CVE-2017-11103 affects Apple Mac OS X versions up to 10.13.1.
How does CVE-2017-11103 affect Debian Debian Linux 8.0?
CVE-2017-11103 affects Debian Debian Linux 8.0.
How does CVE-2017-11103 affect Debian Debian Linux 9.0?
CVE-2017-11103 affects Debian Debian Linux 9.0.
How does CVE-2017-11103 affect Debian Debian Linux 10.0?
CVE-2017-11103 affects Debian Debian Linux 10.0.
What is the severity of CVE-2017-11103?
CVE-2017-11103 has a severity rating of 8.1 (high).
Where can I find more information about CVE-2017-11103?
You can find more information about CVE-2017-11103 at the following references: [1] [2] [3].