Vulnerability Details : CVE-2023-24955
Public exploit exists!
Used for ransomware!
Microsoft SharePoint Server Remote Code Execution Vulnerability
Vulnerability category: Execute code
Products affected by CVE-2023-24955
- cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:sharepoint_server:-:*:*:*:subscription:*:*:*
- cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
CVE-2023-24955 is in the CISA Known Exploited Vulnerabilities Catalog
This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
Microsoft SharePoint Server Code Injection Vulnerability
CISA required action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA description:
Microsoft SharePoint Server contains a code injection vulnerability that allows an authenticated attacker with Site Owner privileges to execute code remotely.
Notes:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24955; https://nvd.nist.gov/vuln/detail/CVE-2023-24955
Added on
2024-03-26
Action due date
2024-04-16
Exploit prediction scoring system (EPSS) score for CVE-2023-24955
92.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less
Metasploit modules for CVE-2023-24955
-
Sharepoint Dynamic Proxy Generator Unauth RCE
Disclosure Date: 2023-05-01First seen: 2024-04-18exploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rceThis module exploits two vulnerabilities in Sharepoint 2019, an auth bypass CVE-2023-29357 which was patched in June of 2023 and CVE-2023-24955, an RCE which was patched in May of 2023. The auth bypass allows attackers to impersonate the Sharepoint Admin user. This vu
CVSS scores for CVE-2023-24955
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
Microsoft Corporation |
CWE ids for CVE-2023-24955
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by:
- nvd@nist.gov (Primary)
- secure@microsoft.com (Secondary)
References for CVE-2023-24955
-
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24955
CVE-2023-24955 - Security Update Guide - Microsoft - Microsoft SharePoint Server Remote Code Execution VulnerabilityPatch;Vendor Advisory
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