CVE-2020-1421
published 2020-07-14CVE-2020-1421: A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.An attacker who…
PriorityP266high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
74.39%
99.4th percentile
A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.An attacker who successfully exploited this vulnerability could gain the same user rights as the local user, aka 'LNK Remote Code Execution Vulnerability'.
Affected
67 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_10 | — | — |
| 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
- →Monitor for .LNK file processing events originating from removable media or UNC/remote share paths, especially when followed by unexpected child process execution ↗
- ·Impact is bounded by the privilege level of the logged-in user; lower-privileged accounts are less impacted ↗
- ·As of advisory publication, the vulnerability had not been publicly disclosed or actively exploited in the wild ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc7.5HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-f75r-mrmx-746p: A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a
ghsa_unreviewed·2022-05-24
CVE-2020-1421 [HIGH] GHSA-f75r-mrmx-746p: A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a
A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.An attacker who successfully exploited this vulnerability could gain the same user rights as the local user, aka 'LNK Remote Code Execution Vulnerability'.
Microsoft
LNK Remote Code Execution Vulnerability
vendor_msrc·2020-07-14·CVSS 7.5
CVE-2020-1421 [HIGH] LNK Remote Code Execution Vulnerability
LNK Remote Code Execution Vulnerability
Description: A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.
An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
The attacker could present to the user a removable drive, or remote share, that contains a malicious .LNK file and an associated malicious binary. When the user opens this drive(or remote share) in Windows Explorer, or any other application that parses the .LNK file, the malicious binary will execute code of the attacker’s choice, on the target s
No detection rules found.
No public exploits indexed.
Krebs
‘Wormable’ Flaw Leads July Microsoft Patches
blogs_krebs·2020-07-14·CVSS 10.0
[CRITICAL] ‘Wormable’ Flaw Leads July Microsoft Patches
Microsoft today released updates to plug a whopping 123 security holes in Windows and related software, including fixes for a critical, “wormable” flaw in Windows Server versions that Microsoft says is likely to be exploited soon. While this particular weakness mainly affects enterprises, July’s care package from Redmond has a little something for everyone. So if you’re a Windows (ab)user, it’s time once again to back up and patch up (preferably in that order).
Microsoft said it is not aware of reports that anyone is exploiting the weakness (yet), but the flaw has been assigned a CVSS score of 10, which translates to “easy to attack” and “likely to be exploited.”
“We consider this to be a wormable vulnerability, meaning that it has the potential to spread via malware between vulnerable c
Trendmicro
Fixes for ‘Wormable’ Windows RCE in July Patch Tuesday
blogs_trendmicro·2020-07-14·CVSS 7.8
[HIGH] Fixes for ‘Wormable’ Windows RCE in July Patch Tuesday
# Fixes for ‘Wormable’ Windows RCE in July Patch Tuesday
The patches address 18 vulnerabilities rated Critical and 105 that were rated Important in severity. A total of eight CVEs were disclosed through Trend Micro’s Zero Day Initiative (ZDI) program.
By: Trend Micro
2020/07/14
Read time: ( words)
Save to Folio
There has been a common vulnerabilities and exposures (CVE) fixing trend in 2020 Patch Tuesdays. For instance, Microsoft has patched roughly more than 100 vulnerabilities per month in recent bulletins. Similarly, the July update issues 123 patches, including fixes in RemoteFX vGPU, Microsoft Office, Microsoft Windows, OneDrive, and Jet Database Engine.
The patches address 18 vulnerabilities rated Critical and 105 that were rated Important in severity. A total of eight CVEs wer
Krebs
‘Wormable’ Flaw Leads July Microsoft Patches
blogs_krebs·2020-07-14·CVSS 10.0
[CRITICAL] ‘Wormable’ Flaw Leads July Microsoft Patches
Microsoft today released updates to plug a whopping 123 security holes in Windows and related software, including fixes for a critical, “wormable” flaw in Windows Server versions that Microsoft says is likely to be exploited soon. While this particular weakness mainly affects enterprises, July’s care package from Redmond has a little something for everyone. So if you’re a Windows (ab)user, it’s time once again to back up and patch up (preferably in that order).
Top of the heap this month in terms of outright scariness is CVE-2020-1350 , which concerns a remotely exploitable bug in more or less all versions of Windows Server that attackers could use to install malicious software simply by sending a specially crafted DNS request.
Microsoft said it is not aware of reports that anyone is exp
2020-07-14
Published