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HistorySep 12, 2001 - 4:00 a.m.
CVE-1999-1231
cve-1999-1231
ssh 2.0.12
user account identification
remote attack
nvd
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.2 High
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
62.0%
ssh 2.0.12, and possibly other versions, allows valid user names to attempt to enter the correct password multiple times, but only prompts an invalid user name for a password once, which allows remote attackers to determine user account names on the server.
Affected configurations
Node
sshssh2Match2.0
ORsshssh2Match2.0.1
ORsshssh2Match2.0.2
ORsshssh2Match2.0.3
ORsshssh2Match2.0.4
ORsshssh2Match2.0.5
ORsshssh2Match2.0.6
ORsshssh2Match2.0.7
ORsshssh2Match2.0.8
ORsshssh2Match2.0.9
ORsshssh2Match2.0.10
ORsshssh2Match2.0.11
ORsshssh2Match2.0.12
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.2 High
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
62.0%
Related for CVE-1999-1231