Cisco CSS WebNS ssh crash

2007.09.05

Credit: NetExpres

Risk: Medium

Local: Yes

Remote: No

CVE: CVE-2007-4654

CWE: CWE-399

CVSS Base Score: 5/10

Impact Subscore: 2.9/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: None

Integrity impact: None

Availability impact: Partial

Undocument bug on Cisco CSS series 11000 with Webns 8.20.0.1

Cisco CSS series 11000 with webns system and ssh daemon crash on  ssh 
crc32 old 2001 exploit

Cisco CSS :
Webns Version:  08.20.0.01  (using command sh ver)
SSH Version: SSHield version 1.6.1, SSH version OpenSSH_3.0.2p1 (using 
command sh sshd version)

CSS is default configured with max 5 concurrency session

with old shack exploit css does not relase connection and when it get 5 
connection it crashes with no other possibility of connection

Alessandro Fiorenzi  aka NetExpress

See this note in RAW Version

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Cisco CSS WebNS ssh crash

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