CVE-2020-24660 : An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. An a

An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. An attacker may bypass URL-based access control to protected Virtual Hosts by submitting a non-normalized URI. This also affects versions before 0.5.2 of the "Lemonldap::NG handler for Node.js" package.

Published 2020-09-14 13:15:10

Updated 2020-09-18 19:42:12

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2020-24660

Debian » Debian Linux » Version: 10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Matching versions
Lemonldap-ng » Lemonldap::ng
Versions up to, including, (<=) 2.0.8
cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng:*:*:*:*:*:*:*:*
Matching versions
Lemonldap-ng » Lemonldap::ng Handler » For Node.js
Versions up to, including, (<=) 0.5.2
cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng_handler:*:*:*:*:*:node.js:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-24660

EPSS FAQ

0.68%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 69 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-24660

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-24660

CWE-425 Direct Request ('Forced Browsing')

The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-24660

https://github.com/LemonLDAPNG/node-lemonldap-ng-handler/security/advisories/GHSA-x44x-r84w-8v67

Lack of URL normalization may lead to authorization bypass when URL access rules are used · Advisory · LemonLDAPNG/node-lemonldap-ng-handler · GitHub
Third Party Advisory
https://github.com/LemonLDAPNG/node-lemonldap-ng-handler/releases/tag/0.5.2

Release 0.5.2 · LemonLDAPNG/node-lemonldap-ng-handler · GitHub
Third Party Advisory
https://www.debian.org/security/2020/dsa-4762

Debian -- Security Information -- DSA-4762-1 lemonldap-ng
Third Party Advisory
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2290

[security:high, CVE-2020-24660] Lack of URL normalization by Nginx may lead to authorization bypass when URL access rules are used (#2290) · Issues · LemonLDAP NG / lemonldap-ng · GitLab
Exploit;Third Party Advisory

Jump to

Vulnerability Details : CVE-2020-24660

Products affected by CVE-2020-24660

Exploit prediction scoring system (EPSS) score for CVE-2020-24660

CVSS scores for CVE-2020-24660

CWE ids for CVE-2020-24660

References for CVE-2020-24660