CVE-2017-14482

emacs: command injection flaw within "enriched mode" handling

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

GNU Emacs before 25.3 allows remote attackers to execute arbitrary code via email with crafted "Content-Type: text/enriched" data containing an x-display XML element that specifies execution of shell commands, related to an unsafe text/enriched extension in lisp/textmodes/enriched.el, and unsafe Gnus support for enriched and richtext inline MIME objects in lisp/gnus/mm-view.el. In particular, an Emacs user can be instantly compromised by reading a crafted email message (or Usenet news article).

GNU Emacs en versiones anteriores a la 25.3 permite que atacantes remotos ejecuten código arbitrario por email con datos "Content-Type: text/enriched" manipulados que contienen un elemento x-display XML que especifica la ejecución de comandos shell. Esto está relacionado con una extensión text/enriched no segura en lisp/textmodes/enriched.el, así como con un soporte Gnus inseguro para objetos MIME "enriched" y "richtext" en lisp/gnus/mm-view.el. Concretamente, es posible que un usuario de Emacs quede comprometido instantáneamente leyendo un mensaje de correo electrónico manipulado (o un artículo de noticias de Usenet).

A command injection flaw within the Emacs "enriched mode" handling has been discovered. By tricking an unsuspecting user into opening a specially crafted file using Emacs, a remote attacker could exploit this flaw to execute arbitrary commands with the privileges of the Emacs user.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-09-14 CVE Reserved
2017-09-14 CVE Published
2023-08-25 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (10)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2017/09/11/1	2019-10-03
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=28350	2019-10-03
https://git.savannah.gnu.org/cgit/emacs.git/commit/?h=emacs-25&id=9ad0fcc54442a9a01d41be19880250783426db70	2019-10-03

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3975	2019-10-03
https://access.redhat.com/errata/RHSA-2017:2771	2019-10-03
https://security.gentoo.org/glsa/201801-07	2019-10-03
https://www.debian.org/security/2017/dsa-3970	2019-10-03
https://www.gnu.org/software/emacs/index.html#Releases	2019-10-03
https://access.redhat.com/security/cve/CVE-2017-14482	2017-09-19
https://bugzilla.redhat.com/show_bug.cgi?id=1490409	2017-09-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Emacs Search vendor "Gnu" for product "Emacs"				<= 25.2 Search vendor "Gnu" for product "Emacs" and version " <= 25.2"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected