CVE-2017-11501 Detail
Current Description
NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation for LDAP. The users.ldap NixOS module implements user authentication against LDAP servers via a PAM module. It was found that if TLS is enabled to connect to the LDAP server with users.ldap.useTLS, peer verification will be unconditionally disabled in /etc/ldap.conf.
Source:
MITRE
View Analysis Description
Analysis Description
NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation for LDAP. The users.ldap NixOS module implements user authentication against LDAP servers via a PAM module. It was found that if TLS is enabled to connect to the LDAP server with users.ldap.useTLS, peer verification will be unconditionally disabled in /etc/ldap.conf.
Source:
MITRE
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
5.9 MEDIUM
Vector:
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
(V3 legend)
Impact Score:
3.6
Exploitability Score:
2.2
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
High
Availability (A):
None
CVSS v2.0 Severity and Metrics:
Base Score:
4.3 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
(V2 legend)
Impact Subscore:
2.9
Exploitability Subscore:
8.6
Access Vector (AV):
Network
Access Complexity (AC):
Medium
Authentication (AU):
None
Confidentiality (C):
None
Integrity (I):
Partial
Availability (A):
None
Additional Information:
Allows unauthorized modification
References to Advisories, Solutions, and Tools
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Technical Details
Vulnerability Type
(View All)
- Improper Certificate Validation (CWE-295)
Change History
3 change records found
- show changes
Modified Analysis -
5/10/2019 3:41:05 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Reference Type |
http://openwall.com/lists/oss-security/2017/07/20/1 Mailing List, Patch, Third Party Advisory |
http://openwall.com/lists/oss-security/2017/07/20/1 Mailing List, Mitigation, Patch, Third Party Advisory |
| Changed |
Reference Type |
https://github.com/NixOS/nixpkgs/issues/27506 Issue Tracking, Patch, Third Party Advisory |
https://github.com/NixOS/nixpkgs/issues/27506 Issue Tracking, Third Party Advisory |
| Changed |
Reference Type |
https://groups.google.com/forum/#!topic/nix-security-announce/qrDU0KH_ZRk No Types Assigned |
https://groups.google.com/forum/#!topic/nix-security-announce/qrDU0KH_ZRk Mitigation, Third Party Advisory |
CVE Modified by MITRE -
8/13/2018 5:47:56 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://groups.google.com/forum/#!topic/nix-security-announce/qrDU0KH_ZRk [No Types Assigned] |
| Removed |
Reference |
https://groups.google.com/forum/#%21topic/nix-security-announce/qrDU0KH_ZRk [Patch, Third Party Advisory] |
|
Initial Analysis -
7/25/2017 1:14:31 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:nixos_project:nixos:17.03:*:*:*:*:*:*:* (and previous) |
| Added |
CVSS V2 |
|
(AV:N/AC:M/Au:N/C:N/I:P/A:N) |
| Added |
CVSS V3 |
|
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| Added |
CWE |
|
CWE-295 |
| Changed |
Reference Type |
http://openwall.com/lists/oss-security/2017/07/20/1 No Types Assigned |
http://openwall.com/lists/oss-security/2017/07/20/1 Mailing List, Patch, Third Party Advisory |
| Changed |
Reference Type |
https://github.com/NixOS/nixpkgs/issues/27506 No Types Assigned |
https://github.com/NixOS/nixpkgs/issues/27506 Issue Tracking, Patch, Third Party Advisory |
| Changed |
Reference Type |
https://groups.google.com/forum/#%21topic/nix-security-announce/qrDU0KH_ZRk No Types Assigned |
https://groups.google.com/forum/#%21topic/nix-security-announce/qrDU0KH_ZRk Patch, Third Party Advisory |
Quick Info
CVE Dictionary Entry:
CVE-2017-11501
NVD Published Date:
07/20/2017
NVD Last Modified:
05/10/2019
|