CVE-2019-12523

Published: Nov 26, 2019 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2019-4118 Aliases: GSD-2019-12523
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,1
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
MEDIUM 6,4
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: none

Description

AI Translation Available

An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0056
Percentile
0,7th
Updated

EPSS Score Trend (Last 90 Days)

Operating System

Debian Linux by Debian

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ubuntu Linux by Canonical

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ubuntu Linux by Canonical

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Squid by Squid-Cache

Version Range Affected
From 4.0 (inclusive)
To 4.8 (inclusive)
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ubuntu Linux by Canonical

cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ubuntu Linux by Canonical

cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Debian Linux by Debian

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Leap by Opensuse

cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ubuntu Linux by Canonical

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Squid by Squid-Cache

Version Range Affected
From 3.0 (inclusive)
To 3.5.28 (inclusive)
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
https://bugzilla.suse.com/show_bug.cgi?id=1156329
Issue Tracking Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1156329
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://usn.ubuntu.com/4213-1/
https://usn.ubuntu.com/4446-1/
https://www.debian.org/security/2020/dsa-4682
http://www.squid-cache.org/Advisories/SQUID-2019_8.txt
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
https://bugzilla.suse.com/show_bug.cgi?id=1156329
Issue Tracking Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1156329
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://usn.ubuntu.com/4213-1/
https://usn.ubuntu.com/4446-1/
https://www.debian.org/security/2020/dsa-4682
http://www.squid-cache.org/Advisories/SQUID-2019_8.txt