CVE-2013-4566

medium

Published 2013-12-12 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

4.0

Description

mod_nss 1.0.8 and earlier, when NSSVerifyClient is set to none for the server/vhost context, does not enforce the NSSVerifyClient setting in the directory context, which allows remote attackers to bypass intended access restrictions.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
rhel	5	affected
rhel	6.0	affected

Application impact

Vendor	Product	Versions
mod_nss_project	mod_nss	`{"endIncluding":"1.0.8"}`
mod_nss_project	mod_nss	`1.0`
mod_nss_project	mod_nss	`1.0.2`
mod_nss_project	mod_nss	`1.0.3`
mod_nss_project	mod_nss	`1.0.4`
mod_nss_project	mod_nss	`1.0.5`
mod_nss_project	mod_nss	`1.0.6`
mod_nss_project	mod_nss	`1.0.7`

References

CWEs

CWE-264

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.