CVE-2024-21390
published 2024-03-12CVE-2024-21390: Microsoft Authenticator Elevation of Privilege Vulnerability
PriorityP279high7.1CVSS 3.1
AVLACLPRNUIRSUCHIHAN
ITWVulnCheck KEV
Exploited in the wild
EPSS
1.27%
66.1th percentile
Microsoft Authenticator Elevation of Privilege Vulnerability
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | authenticator | < 6.2401.0617 | 6.2401.0617 |
| microsoft | microsoft_authenticator | >= 1.0.0 < 6.2401.0617 | 6.2401.0617 |
| msrc | microsoft_authenticator | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Attack requires local presence on the device — look for co-resident malware or malicious applications on devices where Microsoft Authenticator is installed ↗
- →Exploitation is only triggered after the victim closes and re-opens the Authenticator app — monitor for unusual process lifecycle events (kill/relaunch) of the Authenticator process, especially if initiated by a third-party app ↗
- →Post-exploitation impact includes exfiltration of MFA/TOTP codes and modification or deletion of accounts within Authenticator — alert on unexpected account changes or MFA code access patterns ↗
- ·CVSS Attack Vector is Local (AV:L) — this vulnerability is NOT remotely exploitable; a malicious app or malware must already be present on the victim's device, limiting exposure to scenarios where device integrity has already been compromised ↗
- ·User Interaction is Required (UI:R) — exploitation cannot occur silently in the background; the victim must actively close and reopen the Authenticator app, meaning detections should account for this trigger condition ↗
- ·As of advisory publication, the vulnerability has NOT been publicly disclosed or exploited in the wild (Exploited: No, Publicly Disclosed: No), though Microsoft rates it 'Exploitation Less Likely' ↗
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
vulncheck7.1HIGH
vendor_msrc7.1HIGH
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GHSA
GHSA-7wpm-78c8-xxqh: Microsoft Authenticator Elevation of Privilege Vulnerability
ghsa_unreviewed·2024-03-12
CVE-2024-21390 [HIGH] CWE-287 GHSA-7wpm-78c8-xxqh: Microsoft Authenticator Elevation of Privilege Vulnerability
Microsoft Authenticator Elevation of Privilege Vulnerability
VulnCheck
Microsoft authenticator Improper Authentication
vulncheck·2024·CVSS 7.1
CVE-2024-21390 [HIGH] Microsoft authenticator Improper Authentication
Microsoft authenticator Improper Authentication
Microsoft Authenticator Elevation of Privilege Vulnerability
Affected: Microsoft authenticator
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://isc.sans.edu/diary/Guest+Diary+Business+Email+Compromise/31474/
Microsoft
Microsoft Authenticator Elevation of Privilege Vulnerability
vendor_msrc·2024-03-12·CVSS 7.1
CVE-2024-21390 [HIGH] CWE-287 Microsoft Authenticator Elevation of Privilege Vulnerability
Microsoft Authenticator Elevation of Privilege Vulnerability
FAQ: According to the CVSS metric, Attack Vector is Local (AV:L). What does that mean for this vulnerability?
An attacker would have to have local presence on the device through malware or a malicious application to be able to exploit this vulnerability.
FAQ: According to the CVSS metric, User Interaction is Required (UI:R). What interaction would the user have to do?
The victim will have to close and re-open the Authenticator app for the attacker to exploit this vulnerability.
FAQ: According to the CVSS metric, Confidentiality and Integrity impact are High and Availability is None (C:H, I:H, A:N). What does that mean for this vulnerability?
Exploitation of this vulnerability could allow an attacker to gain access to multi-fac
No detection rules found.
No public exploits indexed.
Krebs
Patch Tuesday, March 2024 Edition
blogs_krebs·2024-03-12·CVSS 7.1
[HIGH] Patch Tuesday, March 2024 Edition
Apple and Microsoft recently released software updates to fix dozens of security holes in their operating systems. Microsoft today patched at least 60 vulnerabilities in its Windows OS. Meanwhile, Apple’s new macOS Sonoma addresses at least 68 security weaknesses, and its latest update for iOS fixes two zero-day flaws.
Last week, Apple pushed out an urgent software update to its flagship iOS platform, warning that there were at least two zero-day exploits for vulnerabilities being used in the wild (CVE-2024-23225 and CVE-2024-23296). The security updates are available in iOS 17.4, iPadOS 17.4, and iOS 16.7.6.
Apple’s macOS Sonoma 14.4 Security Update addresses dozens of security issues. Jason Kitka, chief information security officer at Automox, said the vulnerabilities patched in this u
Bleepingcomputer
Microsoft March 2024 Patch Tuesday fixes 60 flaws, 18 RCE bugs
blogs_bleepingcomputer·2024-03-12·CVSS 5.5
[MEDIUM] Microsoft March 2024 Patch Tuesday fixes 60 flaws, 18 RCE bugs
## Microsoft March 2024 Patch Tuesday fixes 60 flaws, 18 RCE bugs
## Lawrence Abrams
24 Elevation of Privilege Vulnerabilities
3 Security Feature Bypass Vulnerabilities
18 Remote Code Execution Vulnerabilities
6 Information Disclosure Vulnerabilities
6 Denial of Service Vulnerabilities
2 Spoofing Vulnerabilities
The total count of 60 flaws does not include 4 Microsoft Edge flaws fixed on March 7th.
Furthermore, Microsoft did not disclose any zero-days as part of today's Patch Tuesday updates.
To learn more about the non-security updates released today, you can review our dedicated articles on the new Windows 11 KB5035853 update and the Windows 10 KB5035845 update .
## Flaws of interest
This month's Patch Tuesday does not fix any zero-day vulnerabilities but does include some in
Trendmicro
The March 2024 Security Update Review
blogs_trendmicro·2024-03-12
The March 2024 Security Update Review
# The March 2024 Security Update Review
Get the March 2024 security update and review.
By: Dustin Childs
2024/03/12
Read time: ( words)
Save to Folio
It’s the second Tuesday of the month, and Adobe and Microsoft have released a fresh crop of security updates. Take a break from your other activities and join us as we review the details of their latest advisories. If you’d rather watch the full video recap covering the entire release, you can check it out here:
Adobe Patches for March 2024
For March, Adobe released six patches addressing 56 vulnerabilities in Adobe Experience Manager, Premiere Pro, ColdFusion, Adobe Bridge, Lightroom, and Adobe Animate. Two of these bugs were submitted through the ZDI Program. The largest is the update for Experience Manager, which addresses 44 CVEs.
Trendmicro
The March 2024 Security Update Review
blogs_trendmicro·2024-03-12
The March 2024 Security Update Review
## The March 2024 Security Update Review
Get the March 2024 security update and review.
By: Dustin Childs 2024/03/12 Read time: ( words)
Save to Folio
It’s the second Tuesday of the month, and Adobe and Microsoft have released a fresh crop of security updates. Take a break from your other activities and join us as we review the details of their latest advisories. If you’d rather watch the full video recap covering the entire release, you can check it out here:
Adobe Patches for March 2024
For March, Adobe released six patches addressing 56 vulnerabilities in Adobe Experience Manager, Premiere Pro, ColdFusion, Adobe Bridge, Lightroom, and Adobe Animate. Two of these bugs were submitted through the ZDI Program. The largest is the update for Experience Manager , which addresses 44 CVEs.
Krebs
Patch Tuesday, March 2024 Edition
blogs_krebs·2024-03-12·CVSS 7.1
[HIGH] Patch Tuesday, March 2024 Edition
Apple and Microsoft recently released software updates to fix dozens of security holes in their operating systems. Microsoft today patched at least 60 vulnerabilities in its Windows OS . Meanwhile, Apple’s new macOS Sonoma addresses at least 68 security weaknesses, and its latest update for iOS fixes two zero-day flaws.
Last week, Apple pushed out an urgent software update to its flagship iOS platform, warning that there were at least two zero-day exploits for vulnerabilities being used in the wild (CVE-2024-23225 and CVE-2024-23296). The security updates are available in iOS 17.4 , iPadOS 17.4 , and iOS 16.7.6 .
Apple’s macOS Sonoma 14.4 Security Update addresses dozens of security issues. Jason Kitka , chief information security officer at Automox , said the vulnerabilities patched in
Trendmicro
The March 2024 Security Update Review
blogs_trendmicro·2024-03-12
The March 2024 Security Update Review
## The March 2024 Security Update Review
Get the March 2024 security update and review.
By: Dustin Childs Mar 12, 2024 Read time: ( words)
Save to Folio
It’s the second Tuesday of the month, and Adobe and Microsoft have released a fresh crop of security updates. Take a break from your other activities and join us as we review the details of their latest advisories. If you’d rather watch the full video recap covering the entire release, you can check it out here:
Adobe Patches for March 2024
For March, Adobe released six patches addressing 56 vulnerabilities in Adobe Experience Manager, Premiere Pro, ColdFusion, Adobe Bridge, Lightroom, and Adobe Animate. Two of these bugs were submitted through the ZDI Program. The largest is the update for Experience Manager , which addresses 44 CVE
Trendmicro
The March 2024 Security Update Review
blogs_trendmicro·2024-03-12
The March 2024 Security Update Review
## The March 2024 Security Update Review
Get the March 2024 security update and review.
By: Dustin Childs Mar 12, 2024 Read time: ( words)
Save to Folio
It’s the second Tuesday of the month, and Adobe and Microsoft have released a fresh crop of security updates. Take a break from your other activities and join us as we review the details of their latest advisories. If you’d rather watch the full video recap covering the entire release, you can check it out here:
Adobe Patches for March 2024
For March, Adobe released six patches addressing 56 vulnerabilities in Adobe Experience Manager, Premiere Pro, ColdFusion, Adobe Bridge, Lightroom, and Adobe Animate. Two of these bugs were submitted through the ZDI Programme. The largest is the update for Experience Manager , which addresses 44 C
2024-03-12
Published
Exploited in the wild