National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17847 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  12/22/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf Vendor Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html
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.debian.org/security/2017/dsa-4070 Third Party Advisory
https://www.mail-archive.com/enigmail-users@enigmail.net/msg04280.html Mailing List Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Verification of Cryptographic Signature (CWE-347)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-17847
NVD Published Date:
12/27/2017
NVD Last Modified:
02/03/2018