MSRC_CVE-2023-21742
Vulnerability from csaf_microsoft - Published: 2023-01-10 08:00 - Updated: 2023-01-10 08:00Summary
Microsoft SharePoint Server Remote Code Execution Vulnerability
Severity
Important
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-284
- Improper Access Control
Affected products
Fixed
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.5519.1000
Microsoft SharePoint Foundation 2013 Service Pack 1
|
15.0.5519.1000 | ||
|
Microsoft SharePoint Enterprise Server 2016 16.0.5378.1000
Microsoft SharePoint Enterprise Server 2016
|
16.0.5378.1000 | ||
|
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.5519.1000
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
|
15.0.5519.1000 | ||
|
Microsoft SharePoint Server 2019 16.0.10394.20021
Microsoft SharePoint Server 2019
|
16.0.10394.20021 | ||
|
Microsoft SharePoint Server Subscription Edition 16.0.15601.20418
Microsoft SharePoint Server Subscription Edition
|
16.0.15601.20418 |
Known affected
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Microsoft SharePoint Server Subscription Edition <16.0.15601.20418
Microsoft SharePoint Server Subscription Edition
|
<16.0.15601.20418 |
Vendor Fix
fix
|
|
|
Microsoft SharePoint Server 2019 <16.0.10394.20021
Microsoft SharePoint Server 2019
|
<16.0.10394.20021 |
Vendor Fix
fix
|
|
|
Microsoft SharePoint Enterprise Server 2013 Service Pack 1 <15.0.5519.1000
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
|
<15.0.5519.1000 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Microsoft SharePoint Enterprise Server 2016 <16.0.5378.1000
Microsoft SharePoint Enterprise Server 2016
|
<16.0.5378.1000 |
Vendor Fix
fix
|
|
|
Microsoft SharePoint Foundation 2013 Service Pack 1 <15.0.5519.1000
Microsoft SharePoint Foundation 2013 Service Pack 1
|
<15.0.5519.1000 |
Vendor Fix
fix
|
Threats
Impact
Remote Code Execution
Exploit Status
Exploited:No;Latest Software Release:Exploitation Less Likely
References
7 references
{
"document": {
"acknowledgments": [
{
"names": [
"Anonymous"
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}
],
"aggregate_severity": {
"namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
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},
"lang": "en-US",
"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "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.",
"title": "Disclaimer"
},
{
"category": "general",
"text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
"title": "Customer Action"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2023-21742 Microsoft SharePoint Server Remote Code Execution Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21742"
},
{
"category": "self",
"summary": "CVE-2023-21742 Microsoft SharePoint Server Remote Code Execution Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21742.json"
},
{
"category": "external",
"summary": "Microsoft Exploitability Index",
"url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "Microsoft SharePoint Server Remote Code Execution Vulnerability",
"tracking": {
"current_release_date": "2023-01-10T08:00:00.000Z",
"generator": {
"date": "2025-01-01T00:35:27.460Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2023-21742",
"initial_release_date": "2023-01-10T08:00:00.000Z",
"revision_history": [
{
"date": "2023-01-10T08:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c16.0.5378.1000",
"product": {
"name": "Microsoft SharePoint Enterprise Server 2016 \u003c16.0.5378.1000",
"product_id": "4"
}
},
{
"category": "product_version",
"name": "16.0.5378.1000",
"product": {
"name": "Microsoft SharePoint Enterprise Server 2016 16.0.5378.1000",
"product_id": "10950"
}
}
],
"category": "product_name",
"name": "Microsoft SharePoint Enterprise Server 2016"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c15.0.5519.1000",
"product": {
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"product_id": "3"
}
},
{
"category": "product_version",
"name": "15.0.5519.1000",
"product": {
"name": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.5519.1000",
"product_id": "11099"
}
}
],
"category": "product_name",
"name": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c16.0.10394.20021",
"product": {
"name": "Microsoft SharePoint Server 2019 \u003c16.0.10394.20021",
"product_id": "2"
}
},
{
"category": "product_version",
"name": "16.0.10394.20021",
"product": {
"name": "Microsoft SharePoint Server 2019 16.0.10394.20021",
"product_id": "11585"
}
}
],
"category": "product_name",
"name": "Microsoft SharePoint Server 2019"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c16.0.15601.20418",
"product": {
"name": "Microsoft SharePoint Server Subscription Edition \u003c16.0.15601.20418",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "16.0.15601.20418",
"product": {
"name": "Microsoft SharePoint Server Subscription Edition 16.0.15601.20418",
"product_id": "11961"
}
}
],
"category": "product_name",
"name": "Microsoft SharePoint Server Subscription Edition"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c15.0.5519.1000",
"product": {
"name": "Microsoft SharePoint Foundation 2013 Service Pack 1 \u003c15.0.5519.1000",
"product_id": "5"
}
},
{
"category": "product_version",
"name": "15.0.5519.1000",
"product": {
"name": "Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.5519.1000",
"product_id": "10612"
}
}
],
"category": "product_name",
"name": "Microsoft SharePoint Foundation 2013 Service Pack 1"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2023-21742",
"cwe": {
"id": "CWE-284",
"name": "Improper Access Control"
},
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "The attacker must be authenticated to the target site as at least a Site Member.",
"title": "According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?"
},
{
"category": "faq",
"text": "In a network-based attack, an authenticated attacker, who has a minimum of Site Member permissions (PR:L), could execute code remotely on the SharePoint Server.",
"title": "How could an attacker exploit the vulnerability?"
},
{
"category": "faq",
"text": "No. The Cumulative update for SharePoint Server 2013 includes the update for Foundation Server 2013. Customers running SharePoint Server 2013 Service Pack 1 can install the cumulative update or the security update, which is the same update as for Foundation Server 2013.\nPlease note that this is a clarification of the existing servicing model for SharePoint Server 2013 and applies for all previous updates.",
"title": "I am running SharePoint Enterprise Server 2013 Service Pack 1. Do I need to install both updates that are listed for SharePoint Enterprise Server 2013 Service Pack 1?"
}
],
"product_status": {
"fixed": [
"10612",
"10950",
"11099",
"11585",
"11961"
],
"known_affected": [
"1",
"2",
"3",
"4",
"5"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2023-21742 Microsoft SharePoint Server Remote Code Execution Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21742"
},
{
"category": "self",
"summary": "CVE-2023-21742 Microsoft SharePoint Server Remote Code Execution Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21742"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2023-01-10T08:00:00.000Z",
"details": "16.0.5378.1000:Security Update:https://support.microsoft.com/help/5002338",
"product_ids": [
"4"
],
"url": "https://support.microsoft.com/help/5002338"
},
{
"category": "vendor_fix",
"date": "2023-01-10T08:00:00.000Z",
"details": "15.0.5519.1000:Cumulative Update:https://support.microsoft.com/help/5002335",
"product_ids": [
"3"
],
"url": "https://support.microsoft.com/help/5002335"
},
{
"category": "vendor_fix",
"date": "2023-01-10T08:00:00.000Z",
"details": "15.0.5519.1000:Security Update:https://support.microsoft.com/help/5002336",
"product_ids": [
"3",
"5"
],
"url": "https://support.microsoft.com/help/5002336"
},
{
"category": "vendor_fix",
"date": "2023-01-10T08:00:00.000Z",
"details": "16.0.10394.20021:Security Update:https://support.microsoft.com/help/5002329",
"product_ids": [
"2"
],
"url": "https://support.microsoft.com/help/5002329"
},
{
"category": "vendor_fix",
"date": "2023-01-10T08:00:00.000Z",
"details": "16.0.15601.20418:Security Update:https://support.microsoft.com/help/5002331",
"product_ids": [
"1"
],
"url": "https://support.microsoft.com/help/5002331"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalsScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 7.7,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5"
]
}
],
"threats": [
{
"category": "impact",
"details": "Remote Code Execution"
},
{
"category": "exploit_status",
"details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
}
],
"title": "Microsoft SharePoint Server Remote Code Execution Vulnerability"
}
]
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.