mod_nss: incorrect handling of NSSVerifyClient in directory context
Published Dec 12, 2013
4.0
MEDIUMCVSS 2.0
EPSS 2.00%
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.
Affected products
No data.
Configuration 1
- ≤ 1.0.8
- 1.0
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
Configuration 2
- 5
- 6.0
No data.
Red Hat Enterprise Linux 5
mod_nss-0:1.0.8-8.el5_10
Fixed · RHSA-2013:1779
Red Hat Enterprise Linux 6
mod_nss-0:1.0.8-19.el6_5
Fixed · RHSA-2013:1779
Red Hat Certificate System 8
mod_nss
Will not fix
Red Hat Directory Server 8
fortitude-mod_nss
Will not fix
Red Hat Enterprise Linux 7
mod_nss
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | mod_nss-0:1.0.8-8.el5_10 | Fixed | RHSA-2013:1779 |
| Red Hat Enterprise Linux 6 | mod_nss-0:1.0.8-19.el6_5 | Fixed | RHSA-2013:1779 |
| Red Hat Certificate System 8 | mod_nss | Will not fix | n/a |
| Red Hat Directory Server 8 | fortitude-mod_nss | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | mod_nss | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2022-2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 2.00% (0.02003) | 80.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.26% (0.01262) | 65.70th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.13% (0.00134) | 30.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00346) | 72.51th | v3 (v2023.03.01) |
| Apr 19, 2024 | 0.70% (0.00696) | 79.99th | v3 (v2023.03.01) |
| Oct 25, 2023 | 0.70% (0.00696) | 77.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00350) | 67.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.14% (0.01136) | 58.87th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.21% (0.01213) | 65.91th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (6)
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00118.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2013-1779.html vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2013-4566 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1016832 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-4566
- https://www.cve.org/CVERecord?id=CVE-2013-4566
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2013-12/msg00118.html | vendor-advisoryx_refsource_SUSE | |
| http://rhn.redhat.com/errata/RHSA-2013-1779.html | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2013-4566 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1016832 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-4566 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-4566 |
Change history (0)
No recorded changes yet.