CVE-1999-1231

Severity

50%

Complexity

99%

Confidentiality

48%

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.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N).

Overview

Type

SSH Communications Security SSH2

First reported 25 years ago

1999-06-09 04:00:00

Last updated 7 years ago

2017-12-19 02:29:00

Affected Software

SSH Communications Security SSH2 2.0.1

2.0.1

SSH Communications Security SSH2 2.0.2

2.0.2

SSH Communications Security SSH2 2.0.3

2.0.3

SSH Communications Security SSH2 2.0.4

2.0.4

SSH Communications Security SSH2 2.0.5

2.0.5

SSH Communications Security SSH2 2.0.6

2.0.6

SSH Communications Security SSH2 2.0.7

2.0.7

SSH Communications Security SSH2 2.0.8

2.0.8

SSH Communications Security SSH2 2.0.9

2.0.9

SSH Communications Security SSH2 2.0.10

2.0.10

SSH Communications Security SSH2 2.0.11

2.0.11

SSH Communications Security SSH2 2.0.12

2.0.12

References

19990609 ssh advirsory

Exploit, Patch, Vendor Advisory

ssh-leak(2276)

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