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CVE-1999-1085

CVE information

Published

25 years ago

Last Modified

7 years ago

CVSSv2.0 Severity

Medium

Impact Analysis

Description

SSH 1.2.25, 1.2.23, and other versions, when used in in CBC (Cipher Block Chaining) or CFB (Cipher Feedback 64 bits) modes, allows remote attackers to insert arbitrary data into an existing stream between an SSH client and server by using a known plaintext attack and computing a valid CRC-32 checksum for the packet, aka the "SSH insertion attack.".

CVSSv2.0 Score

Severity
Medium
Base Score
5/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
None
Integrity Impact
Partial

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:ssh:secure_shell:1.2.25:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ssh:secure_shell:1.2.23:*:*:*:*:*:*:*
  Yes
- -