CVE-2020-0624
published 2020-01-14CVE-2020-0624: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of…
PriorityP182high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
ITWEXPLOITVulnCheck KEVRansomware
Exploited in the wild
EPSS
1.93%
77.7th percentile
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0642.
Affected
60 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1903_for_32-bit_systems | — | — |
Detection & IOCsextracted from sources · hover to see the quote
urlhttps://github.com/nu11secur1ty/Windows10Exploits/raw/master/Undefined/CVE-2020-0624/win32k/__32-win32k.sys5.1.2600.1330.zip↗
- →Exploit manipulates the PEB KernelCallbackTable entries at indices 2 and 3 (CCI2/CCI3) by making them writable via VirtualProtect and swapping them with malicious callbacks — monitor for VirtualProtect calls targeting the PEB KernelCallbackTable address range in user-mode processes. ↗
- →Exploit uses InterlockedExchangePointer to hook KernelCallbackTable function pointers — detect anomalous modification of PEB->KernelCallbackTable pointers pointing outside of user32.dll address space. ↗
- →Exploit triggers the vulnerability by sending WM_LBUTTONDOWN to a ScrollBar child window and destroying the parent window inside the kernel callback — monitor for DestroyWindow called on a parent window from within a Win32k kernel callback context. ↗
- →Exploit creates ScrollBar class windows (parent and child) as part of the UAF trigger sequence — creation of multiple ScrollBar windows followed immediately by DestroyWindow on the parent within a callback is a behavioral indicator. ↗
- ·Microsoft's own advisory marks this CVE as 'Publicly Disclosed: No; Exploited: No' with exploitation assessed as 'Less Likely' for both latest and older software releases — however a public PoC exists on Exploit-DB. ↗
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
vulncheck7.8HIGH
vendor_msrc7.8HIGH
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GHSA
GHSA-cfcc-rvr7-95xp: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2020-0624 [HIGH] CWE-269 GHSA-cfcc-rvr7-95xp: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0642.
GHSA
GHSA-955r-cpqg-mww2: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2020-0642 [HIGH] CWE-269 GHSA-955r-cpqg-mww2: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0624.
VulnCheck
Win32k Elevation of Privilege
vulncheck·2020·CVSS 7.8
CVE-2020-0624 [HIGH] Win32k Elevation of Privilege
Win32k Elevation of Privilege
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0642.
Affected: Microsoft Windows
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Known Ransomware Campaign Use: Known
Exploitation References: https://www.niiconsulting.com/Security_Advisories/Security_Advisory_Digest_Feb_2020_Edition_1.pdf
VulnCheck
Microsoft Windows Use After Free
vulncheck·2020·CVSS 7.8
CVE-2020-0642 [HIGH] Microsoft Windows Use After Free
Microsoft Windows Use After Free
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0624.
Affected: Microsoft Windows
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Known Ransomware Campaign Use: Known
Exploitation References: https://www.niiconsulting.com/Security_Advisories/Security_Advisory_Digest_Feb_2020_Edition_1.pdf
Microsoft
Win32k Elevation of Privilege Vulnerability
vendor_msrc·2020-01-14·CVSS 7.8
CVE-2020-0624 [HIGH] Win32k Elevation of Privilege Vulnerability
Win32k Elevation of Privilege Vulnerability
Description: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The update addresses this vulnerability by correcting how Win32k handles objects in memory.
Microsoft Windows: Microsoft Windows
Impact: Elevation of Privilege
Exploit Status
No detection rules found.
Talos
Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
blogs_talos·2020-01-14·CVSS 8.1
CVE-2020-0601 [HIGH] Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
By Jon Munshaw. Updated January 15th: Added an Advanced Custom Detection (ACD) signature for AMP that can be used to detect exploitation of CVE-2020-0601 by spoofing certificates masquerading as a Microsoft ECC Code Signing Certificate Authority.
Microsoft released its monthly security update today, disclosing vulnerabilities across many of its products and releasing corresponding updates. This month's Patch Tuesday covers 49 vulnerabilities, eight of which are considered critical.
This month's security update is particularly important for its disclosure of two vulnerabilities related to a core cryptographic component in all versions of Windows. CVE-2020-0601 could allow an attacker to use cryptography
Talos
Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
blogs_talos·2020-01-14·CVSS 8.1
CVE-2020-0601 [HIGH] Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Updated January 15th: Added an Advanced Custom Detection (ACD) signature for AMP that can be used to detect exploitation of CVE-2020-0601 by spoofing certificates masquerading as a Microsoft ECC Code Signing Certificate Authority.
Microsoft released its monthly security update today, disclosing vulnerabilities across many of its products and releasing corresponding updates. This month's Patch Tuesday covers 49 vulnerabilities, eight of which are considered critical.
This month's security update is particularly important for its disclosure of two vulnerabilities related to a core cryptographic component in all versions of Windows. CVE-2020-0601 could allow an attacker to use cryptography to sign a malicious executable, making the file appear as if it was from a trusted sou
2020-01-14
Published
Exploited in the wild