CVE-2015-1820

Publication date 9 August 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

REST client for Ruby (aka rest-client) before 1.8.0 allows remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
librestclient-ruby	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not affected
ruby-rest-client	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Ignored end of life
	15.04 vivid	Ignored end of life
	14.10 utopic	Ignored end of life
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
	10.04 LTS lucid	Not in release

Notes

sbeattie

according to upstream advisory, introduced in 1.6.1

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H