CVE-2019-12525
Squid Digest Authentication Buffer Overflow
Description
An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.
INFO
Published Date :
July 11, 2019, 7:15 p.m.
Last Modified :
Nov. 7, 2023, 3:03 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2019-12525
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.
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-2019-12525.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-12525 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-12525 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ -
Modified Analysis by [email protected]
Apr. 26, 2022
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ Mailing List, Third Party Advisory Changed Reference Type https://seclists.org/bugtraq/2019/Aug/42 No Types Assigned https://seclists.org/bugtraq/2019/Aug/42 Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4065-1/ No Types Assigned https://usn.ubuntu.com/4065-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4065-2/ No Types Assigned https://usn.ubuntu.com/4065-2/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2019/dsa-4507 No Types Assigned https://www.debian.org/security/2019/dsa-4507 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-119 CWE-787 -
CVE Modified by [email protected]
Jul. 11, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 21, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html [No Types Assigned] Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 26, 2019
Action Type Old Value New Value Added Reference https://seclists.org/bugtraq/2019/Aug/42 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 24, 2019
Action Type Old Value New Value Added Reference https://www.debian.org/security/2019/dsa-4507 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 14, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 22, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4065-2/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 21, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 18, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4065-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 18, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.squid-cache.org/Versions/v4/changesets/ No Types Assigned http://www.squid-cache.org/Versions/v4/changesets/ Vendor Advisory Changed Reference Type http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch No Types Assigned http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch Patch, Vendor Advisory Changed Reference Type https://github.com/squid-cache/squid/commits/v4 No Types Assigned https://github.com/squid-cache/squid/commits/v4 Patch, Third Party Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions from (including) 3.3.9 up to (including) 3.5.28 *cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (including) 4.7
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-12525 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-2019-12525
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
12.49 }} -3.72%
score
0.95481
percentile