MSRC_CVE-2023-21555
Vulnerability from csaf_microsoft - Published: 2023-01-10 08:00 - Updated: 2023-01-10 08:00Summary
Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability
Severity
Critical
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CWE-367
- Time-of-check Time-of-use (TOCTOU) Race Condition
Vendor Fix
10.0.17763.3887:Security Update:https://support.microsoft.com/help/5022286
https://support.microsoft.com/help/5022286
Vendor Fix
10.0.20348.1487:Security Update:https://support.microsoft.com/help/5022291
https://support.microsoft.com/help/5022291
Vendor Fix
10.0.19042.2486:Security Update:https://support.microsoft.com/help/5022282
https://support.microsoft.com/help/5022282
Vendor Fix
10.0.22000.1455:Security Update:https://support.microsoft.com/help/5022287
https://support.microsoft.com/help/5022287
Vendor Fix
10.0.19044.2486:Security Update:https://support.microsoft.com/help/5022282
https://support.microsoft.com/help/5022282
Vendor Fix
10.0.22621.1105:Security Update:https://support.microsoft.com/help/5022303
https://support.microsoft.com/help/5022303
Vendor Fix
10.0.19045.2486:Security Update:https://support.microsoft.com/help/5022282
https://support.microsoft.com/help/5022282
Vendor Fix
10.0.10240.19685:Security Update:https://support.microsoft.com/help/5022297
https://support.microsoft.com/help/5022297
Vendor Fix
10.0.14393.5648:Security Update:https://support.microsoft.com/help/5022289
https://support.microsoft.com/help/5022289
Vendor Fix
6.1.7601.26321:Monthly Rollup:https://support.microsoft.com/help/5022338
https://support.microsoft.com/help/5022338
Vendor Fix
6.1.7601.26321:Security Only:https://support.microsoft.com/help/5022339
https://support.microsoft.com/help/5022339
Vendor Fix
6.3.9600.20778:Monthly Rollup:https://support.microsoft.com/help/5022352
https://support.microsoft.com/help/5022352
Vendor Fix
6.3.9600.20778:Security Only:https://support.microsoft.com/help/5022346
https://support.microsoft.com/help/5022346
Vendor Fix
6.0.6003.21872:Monthly Rollup:https://support.microsoft.com/help/5022340
https://support.microsoft.com/help/5022340
Vendor Fix
6.0.6003.21872:Security Only:https://support.microsoft.com/help/5022353
https://support.microsoft.com/help/5022353
Vendor Fix
6.2.9200.24075:Monthly Rollup:https://support.microsoft.com/help/5022348
https://support.microsoft.com/help/5022348
Vendor Fix
6.2.9200.24075:Security Only:https://support.microsoft.com/help/5022343
https://support.microsoft.com/help/5022343
References
Acknowledgments
<a href="https://www.twitter.com/guhe120">Yuki Chen</a> with <a href="https://www.cyberkl.com/">Cyber KunLun</a>
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"title": "Assigning CNA"
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"title": "How could an attacker exploit this vulnerability?"
},
{
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"text": "Successful exploitation of this vulnerability requires an attacker to win a race condition.",
"title": "According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?"
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{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalsScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 7.1,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
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"details": "Remote Code Execution"
},
{
"category": "exploit_status",
"details": "Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely"
}
],
"title": "Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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