what you don't know can hurt you
Showing 1 - 2 of 2 RSS Feed

CVE-2019-12524

Status Candidate

Overview

An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks its rules to see if the request should be denied. Squid by default comes with rules to block access to the Cache Manager, which serves detailed server information meant for the maintainer. This rule is implemented via url_regex. The handler for url_regex rules URL decodes an incoming request. This allows an attacker to encode their URL to bypass the url_regex check, and gain access to the blocked resource.

Related Files

Ubuntu Security Notice USN-4446-2
Posted Aug 27, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4446-2 - USN-4446-1 fixed vulnerabilities in Squid. The update introduced a regression when using Squid with the icap or ecap protocols. This update fixes the problem. Jeriko One discovered that Squid incorrectly handled caching certain requests. A remote attacker could possibly use this issue to perform cache-injection attacks or gain access to reverse proxy features such as ESI. Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain URN requests. A remote attacker could possibly use this issue to bypass access checks. Jeriko One discovered that Squid incorrectly handled URL decoding. A remote attacker could possibly use this issue to bypass certain rule checks. Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled input validation. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2019-12520, CVE-2019-12523, CVE-2019-12524, CVE-2019-18676
MD5 | 3ce54dac1a09ed855009027ca7b777d9
Ubuntu Security Notice USN-4446-1
Posted Aug 3, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4446-1 - Jeriko One discovered that Squid incorrectly handled caching certain requests. A remote attacker could possibly use this issue to perform cache-injection attacks or gain access to reverse proxy features such as ESI. Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain URN requests. A remote attacker could possibly use this issue to bypass access checks. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2019-12520, CVE-2019-12523, CVE-2019-12524, CVE-2019-18676
MD5 | 0645410abcb063dfc2a9e47806b54c82
Page 1 of 1
Back1Next

File Archive:

October 2020

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    25 Files
  • 2
    Oct 2nd
    13 Files
  • 3
    Oct 3rd
    1 Files
  • 4
    Oct 4th
    1 Files
  • 5
    Oct 5th
    15 Files
  • 6
    Oct 6th
    15 Files
  • 7
    Oct 7th
    15 Files
  • 8
    Oct 8th
    11 Files
  • 9
    Oct 9th
    3 Files
  • 10
    Oct 10th
    1 Files
  • 11
    Oct 11th
    1 Files
  • 12
    Oct 12th
    8 Files
  • 13
    Oct 13th
    12 Files
  • 14
    Oct 14th
    23 Files
  • 15
    Oct 15th
    4 Files
  • 16
    Oct 16th
    13 Files
  • 17
    Oct 17th
    1 Files
  • 18
    Oct 18th
    1 Files
  • 19
    Oct 19th
    27 Files
  • 20
    Oct 20th
    41 Files
  • 21
    Oct 21st
    18 Files
  • 22
    Oct 22nd
    16 Files
  • 23
    Oct 23rd
    2 Files
  • 24
    Oct 24th
    1 Files
  • 25
    Oct 25th
    1 Files
  • 26
    Oct 26th
    17 Files
  • 27
    Oct 27th
    19 Files
  • 28
    Oct 28th
    29 Files
  • 29
    Oct 29th
    13 Files
  • 30
    Oct 30th
    8 Files
  • 31
    Oct 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close