Vulnerability Monitor

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CVE-2020-1464

A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files. In an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded. The update addresses the vulnerability by correcting how Windows validates file signatures.

Published

2020-08-17T19:15:14.867

Last Modified

2025-04-04T20:47:25.163

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:P/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-347
Type: Secondary
CWE-347

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	microsoft	windows_10_1507	-	Yes
Operating System	microsoft	windows_10_1607	-	Yes
Operating System	microsoft	windows_10_1709	-	Yes
Operating System	microsoft	windows_10_1803	-	Yes
Operating System	microsoft	windows_10_1809	-	Yes
Operating System	microsoft	windows_10_1903	-	Yes
Operating System	microsoft	windows_10_1909	-	Yes
Operating System	microsoft	windows_10_2004	-	Yes
Operating System	microsoft	windows_7	-	Yes
Operating System	microsoft	windows_8.1	-	Yes
Operating System	microsoft	windows_rt_8.1	-	Yes
Operating System	microsoft	windows_server_1903	-	Yes
Operating System	microsoft	windows_server_1909	-	Yes
Operating System	microsoft	windows_server_2004	-	Yes
Operating System	microsoft	windows_server_2008	-	Yes
Operating System	microsoft	windows_server_2008	r2	Yes
Operating System	microsoft	windows_server_2012	-	Yes
Operating System	microsoft	windows_server_2012	r2	Yes
Operating System	microsoft	windows_server_2016	-	Yes
Operating System	microsoft	windows_server_2019	-	Yes

References

https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html Third Party Advisory ([email protected])
https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/ Issue Tracking, Third Party Advisory ([email protected])
https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd Exploit, Third Party Advisory ([email protected])
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464 Patch, Vendor Advisory ([email protected])
https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/ Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)