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Debian DLA-1273-1 : simplesamlphp security update
critical Nessus Plugin ID 106697
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Synopsis
The remote Debian host is missing a security update.Description
simplesamlphp, an authentication and federation application has been found vulnerable to Cross Site Scripting (XSS), signature validation byepass and using insecure connection charset.CVE-2017-18121
A Cross Site Scripting (XSS) issue has been found in the consentAdmin module of SimpleSAMLphp through 1.14.15, allowing an attacker to manually craft links that a victim can open, executing arbitrary JavaScript code.
CVE-2017-18122
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
CVE-2018-6521
The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions.
For Debian 7 'Wheezy', these problems have been fixed in version 1.9.2-1+deb7u2.
We recommend that you upgrade your simplesamlphp packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected simplesamlphp package.See Also
https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html
Plugin Details
Severity: Critical
ID: 106697
File Name: debian_DLA-1273.nasl
Version: 3.7
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 2/9/2018
Updated: 1/11/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:simplesamlphp, cpe:/o:debian:debian_linux:7.0
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 2/8/2018