Cisco CBOS sh nat information disclosure
| cisco-cbos-information-disclosure (6453) |  Medium Risk |
Description:
Cisco 600 series routers running CBOS (Cisco Broadband Operating System) could allow a local attacker to view privileged information. A vulnerability in the console handling could allow a local attacker to view the contents of a show NAT command, if a connection to a Cisco router is established during the command execution. An attacker could exploit this vulnerability to obtain sensitive information and possibly launch further attacks on the vulnerable system.
*CVSS:
| Base Score: | 2.5 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | None |
| Availability Impact: | None |
| Temporal Score: | 1.8 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Obtain Information
Remedy:
Upgrade to one of the fixed versions of CBOS (2.3.9 or later), as listed in Cisco Systems Field Notice, May 22, 2001. See References.
References:
- BugTraq Mailing List, Fri Apr 20 2001 - 04:56:17 CDT: Bug in Cisco CBOS v2.3.0.053.
- BugTraq Mailing List, Mon Apr 23 2001 - 11:05:00 CDT: Re: Bug in Cisco CBOS v2.3.0.053.
- CIAC Information Bulletin L-086: Cisco Multiple Vulnerabilities in CBOS.
- Cisco Systems Field Notice, May 22, 2001: More multiple vulnerabilities in CBOS.
- BID-2635: Cisco CBOS Show NAT Output Session Switching Vulnerability
- CVE-2001-0444: Cisco CBOS 2.3.0.053 sends output of the sh nat (aka show nat) command to the terminal of the next user who attempts to connect to the router via telnet, which could allow that user to obtain sensitive information.
- OSVDB ID: 1796: Cisco CBOS Show NAT Output Disclosure
Platforms Affected:
- Cisco Broadband Operating System 2.3.053
- Cisco Broadband Operating System 2.4.1
Reported:
Apr 20, 2001
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.