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CVE-2017-1002201

Published: 15 October 2019

In haml versions prior to version 5.0.0.beta.2, when using user input to perform tasks on the server, characters like < > " ' must be escaped properly. In this case, the ' character was missed. An attacker can manipulate the input to introduce additional attributes, potentially executing code.

From the Ubuntu Security Team

It was discovered that Haml did not properly escape the ' character. If Haml were made to process crafted data, an attacker could execute arbitrary code.

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
ruby-haml
Launchpad, Ubuntu, Debian
bionic Needed

disco Not vulnerable
(5.0.4-3)
eoan Not vulnerable
(5.0.4-3)
focal Not vulnerable
(5.0.4-3)
upstream
Released (5.0.4-1)
groovy Not vulnerable
(5.0.4-3)
xenial Needed

kinetic Not vulnerable
(5.0.4-3)
trusty
Released (4.0.5-2+deb8u1build0.14.04.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
hirsute Not vulnerable
(5.0.4-3)
impish Not vulnerable
(5.0.4-3)
jammy Not vulnerable
(5.0.4-3)
lunar Not vulnerable
(5.0.4-3)
mantic Not vulnerable
(5.0.4-3)

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