Vulnerability Details : CVE-2018-1000858
Potential exploit
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
Vulnerability category: Cross-site request forgery (CSRF)Denial of serviceInformation leak
Products affected by CVE-2018-1000858
- cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-1000858
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-1000858
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2018-1000858
-
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-1000858
-
https://usn.ubuntu.com/3853-1/
USN-3853-1: GnuPG vulnerability | Ubuntu security noticesThird Party Advisory
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https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html
Attacks on GnuPG's Web Key Directory (WKD) | SektionEins GmbHThird Party Advisory
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https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html
Advisory 01/2018: Multiple vulnerabilities in GnuPG/dirmngr regarding WKD | SektionEins GmbHExploit;Third Party Advisory
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