Upstream information

CVE-2019-12524 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 5.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
Access Vector Network Network
Access Complexity Low High
Privileges Required None Low
User Interaction None Required
Scope Unchanged Changed
Confidentiality Impact High High
Integrity Impact High None
Availability Impact High None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entries: 1169666 [RESOLVED / DUPLICATE], 1170423 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
HPE Helion Openstack 8
  • squid >= 3.5.21-26.23.1
Patchnames:
HPE-Helion-OpenStack-8-2020-1227
SUSE Enterprise Storage 5
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-Storage-5-2020-1227
SUSE Linux Enterprise Point of Sale 11 SP3
  • squid3 >= 3.1.23-8.16.37.12.1
Patchnames:
sleposp3-squid3-14460
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-POS-12-SP2-CLIENT-2020-1227
SUSE Linux Enterprise Server 11 SP4-LTSS
SUSE Linux Enterprise Server for SAP Applications 11 SP4-LTSS
  • squid3 >= 3.1.23-8.16.37.12.1
Patchnames:
slessp4-squid3-14460
SUSE Linux Enterprise Server 12 SP2-BCL
SUSE Linux Enterprise Server for SAP Applications 12 SP2-BCL
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-BCL-2020-1227
SUSE Linux Enterprise Server 12 SP2-ESPOS
SUSE Linux Enterprise Server for SAP Applications 12 SP2-ESPOS
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-ESPOS-2020-1227
SUSE Linux Enterprise Server 12 SP2-LTSS
SUSE Linux Enterprise Server for SAP Applications 12 SP2-LTSS
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2020-1227
SUSE Linux Enterprise Server 12 SP3-BCL
SUSE Linux Enterprise Server for SAP Applications 12 SP3-BCL
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-BCL-2020-1227
SUSE Linux Enterprise Server 12 SP3-ESPOS
SUSE Linux Enterprise Server for SAP Applications 12 SP3-ESPOS
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-ESPOS-2020-1227
SUSE Linux Enterprise Server 12 SP3-LTSS
SUSE Linux Enterprise Server for SAP Applications 12 SP3-LTSS
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-2020-1227
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-2020-1227
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SAP-12-SP2-2020-1227
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-SLE-SAP-12-SP3-2020-1227
SUSE OpenStack Cloud 7
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-OpenStack-Cloud-7-2020-1227
SUSE OpenStack Cloud 8
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-OpenStack-Cloud-8-2020-1227
SUSE OpenStack Cloud Crowbar 8
  • squid >= 3.5.21-26.23.1
Patchnames:
SUSE-OpenStack-Cloud-Crowbar-8-2020-1227


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 squid Released
SUSE Enterprise Storage 5 squid Released
SUSE Linux Enterprise 15-SP1 Module for Server Applications squid Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 squid Released
SUSE Linux Enterprise High Performance Computing 12 SP5 squid Not affected
SUSE Linux Enterprise High Performance Computing 15 LTSS squid Not affected
SUSE Linux Enterprise Point of Service 11 SP3 squid3 Released
SUSE Linux Enterprise Point of Service Image Server 12 squid Released
SUSE Linux Enterprise Server 11 SP4 LTSS squid Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS squid3 Released
SUSE Linux Enterprise Server 12 SP1 LTSS squid Not affected
SUSE Linux Enterprise Server 12 SP2 BCL squid Released
SUSE Linux Enterprise Server 12 SP2 ESPOS squid Released
SUSE Linux Enterprise Server 12 SP2 LTSS squid Released
SUSE Linux Enterprise Server 12 SP3 BCL squid Released
SUSE Linux Enterprise Server 12 SP3 ESPOS squid Released
SUSE Linux Enterprise Server 12 SP3 LTSS squid Released
SUSE Linux Enterprise Server 12 SP4 squid Released
SUSE Linux Enterprise Server 12 SP4 ESPOS squid Released
SUSE Linux Enterprise Server 12 SP4 LTSS squid Released
SUSE Linux Enterprise Server 12 SP5 squid Not affected
SUSE Linux Enterprise Server 15 LTSS squid Not affected
SUSE Linux Enterprise Server ESPOS 15 squid Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 squid Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 squid Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 squid Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 squid Not affected
SUSE OpenStack Cloud 7 squid Released
SUSE OpenStack Cloud 8 squid Released
SUSE OpenStack Cloud 9 squid Released
SUSE OpenStack Cloud Crowbar 8 squid Released
SUSE OpenStack Cloud Crowbar 9 squid Released