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6.1
MEDIUM CVSS 3.0
CVE-2018-19131
Squid Cross-Site Scripting Vulnerability
Description

Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors.

INFO

Published Date :

Nov. 9, 2018, 11:29 a.m.

Last Modified :

Nov. 21, 2024, 3:57 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-19131 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Squid-cache squid
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 MEDIUM [email protected]
Solution
The Squid packages have a cross-site scripting vulnerability and need to be updated.
  • Update the Squid packages.
  • Upgrade to Squid version 4.4 or later.
Public PoC/Exploit Available at Github

CVE-2018-19131 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-19131.

URL Resource
http://www.squid-cache.org/Advisories/SQUID-2018_4.txt Mitigation Vendor Advisory
http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patch Patch Vendor Advisory
https://github.com/squid-cache/squid/pull/306 Third Party Advisory
http://www.squid-cache.org/Advisories/SQUID-2018_4.txt Mitigation Vendor Advisory
http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patch Patch Vendor Advisory
https://github.com/squid-cache/squid/pull/306 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-19131 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-19131 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
anquanscan/sec-tools

None

Updated: 2 months, 3 weeks ago
49 stars 10 fork 10 watcher
Born at : July 28, 2022, 3:22 a.m. This repo has been linked 149 different CVEs too.
Profile Photo
0xT11/CVE-POC

None

Updated: 3 months, 1 week ago
84 stars 31 fork 31 watcher
Born at : Oct. 2, 2020, 2:49 p.m. This repo has been linked 1114 different CVEs too.
Profile Photo
JonathanWilbur/CVE-2018-19131

Proof-of-Concept exploit of CVE-2018-19131: Squid Proxy XSS via X.509 Certificate

proxy xss exploit cve squid squid3 squid-proxy xss-exploitation xss-poc

Shell HTML Dockerfile

Updated: 2 years, 4 months ago
20 stars 1 fork 1 watcher
Born at : Nov. 13, 2018, 1:40 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-19131 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-19131 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.squid-cache.org/Advisories/SQUID-2018_4.txt
    Added Reference http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patch
    Added Reference https://github.com/squid-cache/squid/pull/306
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 11, 2018

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patch No Types Assigned http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patch Patch, Vendor Advisory
    Changed Reference Type https://github.com/squid-cache/squid/pull/306 No Types Assigned https://github.com/squid-cache/squid/pull/306 Third Party Advisory
    Changed Reference Type http://www.squid-cache.org/Advisories/SQUID-2018_4.txt No Types Assigned http://www.squid-cache.org/Advisories/SQUID-2018_4.txt Mitigation, Vendor Advisory
    Added CWE CWE-79
    Added CPE Configuration OR *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions up to (excluding) 4.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

6.83 }} -7.98%

score

0.90962

percentile