Detections
Analytics
Amazon Linux 2 : squid (ALAS-2020-1548)
medium Nessus Plugin ID 141995
Language:
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of squid installed on the remote host is prior to 3.5.20-17. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1548 advisory.A flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15810)
A flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15811)
Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF. (CVE-2020-24606)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update squid' to update your system.See Also
https://alas.aws.amazon.com/AL2/ALAS-2020-1548.html
https://access.redhat.com/security/cve/CVE-2020-15810
Plugin Details
Severity: Medium
ID: 141995
File Name: al2_ALAS-2020-1548.nasl
Version: 1.3
Type: local
Agent: unix
Published: 10/28/2020
Updated: 12/11/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 4
Temporal Score: 3
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS Score Source: CVE-2020-15811
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:squid-sysvinit, p-cpe:/a:amazon:linux:squid-migration-script, p-cpe:/a:amazon:linux:squid-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:squid
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/22/2020
Vulnerability Publication Date: 8/24/2020
Reference Information
CVE: CVE-2020-15810, CVE-2020-15811, CVE-2020-24606
ALAS: 2020-1548