CVE-2018-1000858

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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html	Third Party Advisory
https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html	Exploit Third Party Advisory
https://usn.ubuntu.com/3853-1/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

Information

Published : 2018-12-20 09:29

Updated : 2019-02-13 08:43

NVD link : CVE-2018-1000858

Mitre link : CVE-2018-1000858

JSON object : View

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

Products Affected

canonical

ubuntu_linux

gnupg

gnupg

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html", "name": "https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html", "name": "https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://usn.ubuntu.com/3853-1/", "name": "USN-3853-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-352"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-1000858", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2018-12-20T17:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.2.11", "versionStartIncluding": "2.1.12"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-02-13T16:43Z"}

8.8 /10