CVE-2017-17847

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Enigmail before 1.9.9. Signature spoofing is possible because the UI does not properly distinguish between an attachment signature, and a signature that applies to the entire containing message, aka TBE-01-021. This is demonstrated by an e-mail message with an attachment that is a signed e-mail message in message/rfc822 format.

Se ha descubierto un problema en versiones anteriores a la 1.9.9 de Enigmail. Se puede dar una suplantación de firma debido a que la interfaz de usuario no distingue correctamente entre una firma adjunta y una firma que aplica a todo el mensaje. Esto también se conoce como TBE-01-021. Esto se demuestra con un mensaje de correo electrónico con un adjunto que es un mensaje de correo firmado en formato message/rfc822.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-12-22 CVE Reserved
2017-12-22 CVE Published
2023-07-18 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-347: Improper Verification of Cryptographic Signature

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html	Mailing List
https://lists.debian.org/debian-security-announce/2017/msg00333.html	Third Party Advisory
https://sourceforge.net/p/enigmail/bugs/709	Third Party Advisory
https://www.mail-archive.com/enigmail-users%40enigmail.net/msg04280.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf	2023-11-07
https://www.debian.org/security/2017/dsa-4070	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Enigmail Search vendor "Enigmail"		Enigmail Search vendor "Enigmail" for product "Enigmail"				< 1.9.9 Search vendor "Enigmail" for product "Enigmail" and version " < 1.9.9"		-		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
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected