CVE-2017-17688

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The OpenPGP specification allows a Cipher Feedback Mode (CFB) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code (MDC) feature or accept an obsolete packet type, not a problem in the OpenPGP specification

** EN DISPUTA ** La especificación OpenPGP permite un ataque malleability-gadget Cipher Feedback Mode (CFB) que puede conducir indirectamente a la exfiltración en texto plano. Esto también se conoce como EFAIL. NOTA: terceros indican que este es un problema en aplicaciones que gestionan de manera incorrecta la característica de Modification Detection Code (MDC) o que afectan un tipo de paquete obsoleto, en lugar de un problema en la especificación OpenPGP.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-12-15 CVE Reserved
2018-05-16 CVE Published
2023-10-28 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (10)

URL	Tag	Source
http://flaked.sockpuppet.org/2018/05/16/a-unified-timeline.html	Third Party Advisory
http://www.securityfocus.com/bid/104162	Third Party Advisory
http://www.securitytracker.com/id/1040904	Third Party Advisory
https://lists.gnupg.org/pipermail/gnupg-users/2018-May/060334.html	Third Party Advisory
https://news.ycombinator.com/item?id=17066419	Issue Tracking
https://protonmail.com/blog/pgp-vulnerability-efail	Issue Tracking
https://twitter.com/matthew_d_green/status/995996706457243648	Third Party Advisory
https://www.patreon.com/posts/cybersecurity-15-18814817	Issue Tracking
https://www.synology.com/support/security/Synology_SA_18_22	Third Party Advisory

URL	Date	SRC
https://efail.de	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Mail Search vendor "Apple" for product "Mail"				-		-		Affected
Apple Search vendor "Apple"		Mail Search vendor "Apple" for product "Mail"				-		iphone_os		Affected
Bloop Search vendor "Bloop"		Airmail Search vendor "Bloop" for product "Airmail"				-		-		Affected
Emclient Search vendor "Emclient"		Emclient Search vendor "Emclient" for product "Emclient"				-		-		Affected
Flipdogsolutions Search vendor "Flipdogsolutions"		Maildroid Search vendor "Flipdogsolutions" for product "Maildroid"				-		-		Affected
Freron Search vendor "Freron"		Mailmate Search vendor "Freron" for product "Mailmate"				-		-		Affected
Horde Search vendor "Horde"		Horde Imp Search vendor "Horde" for product "Horde Imp"				-		-		Affected
Microsoft Search vendor "Microsoft"		Outlook Search vendor "Microsoft" for product "Outlook"				2007 Search vendor "Microsoft" for product "Outlook" and version "2007"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				-		-		Affected
Postbox-inc Search vendor "Postbox-inc"		Postbox Search vendor "Postbox-inc" for product "Postbox"				-		-		Affected
R2mail2 Search vendor "R2mail2"		R2mail2 Search vendor "R2mail2" for product "R2mail2"				-		-		Affected
Roundcube Search vendor "Roundcube"		Webmail Search vendor "Roundcube" for product "Webmail"				-		-		Affected