vulnwire
7.5high

CVE-2017-17847

An issue was discovered in Enigmail before 1.9.9.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.2%
percentile 68%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

1.20% probability of exploitation in the next 30 days, higher than 68% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-347 Improper Verification of Cryptographic Signature

References

  • enigmail.net /download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf · x_refsource_MISC, x_transferred
  • sourceforge.net /p/enigmail/bugs/709/ · x_refsource_MISC, x_transferred
  • lists.debian.org /debian-security-announce/2017/msg00333.html · x_refsource_MISC, x_transferred
  • mail-archive.com /enigmail-users%40enigmail.net/msg04280.html · x_refsource_MISC, x_transferred
  • lists.debian.org /debian-lts-announce/2017/12/msg00021.html · mailing-list, x_refsource_MLIST, x_transferred
  • debian.org /security/2017/dsa-4070 · vendor-advisory, x_refsource_DEBIAN, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.