CVE-2019-11454

Published: 22 April 2019

Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.

From the Ubuntu Security Team

Zack Flack discovered that Monit incorrectly handled certain input. A remote authenticated user could exploit this to conduct cross-site scripting (XSS) attacks.

Priority

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package	Release	Status
monit Launchpad, Ubuntu, Debian	bionic	Released (1:5.25.1-1ubuntu0.1~esm1) Available with Ubuntu Pro
	cosmic	Released (1:5.25.2-1ubuntu0.1)
	disco	Released (1:5.25.2-3ubuntu0.1)
	eoan	Ignored (end of life)
	focal	Not vulnerable (1:5.25.3-1)
	groovy	Not vulnerable (1:5.25.3-1)
	hirsute	Not vulnerable (1:5.25.3-1)
	impish	Not vulnerable (1:5.25.3-1)
	jammy	Not vulnerable (1:5.25.3-1)
	kinetic	Not vulnerable (1:5.25.3-1)
	lunar	Not vulnerable (1:5.25.3-1)
	trusty	Released (1:5.6-2ubuntu0.1+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Needed
	xenial	Released (1:5.16-2ubuntu0.2+esm1) Available with Ubuntu Pro

Severity score breakdown

Parameter	Value
Base score	6.1
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Bugs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927775

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