CVE-2021-31206
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity Score
7.6
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Microsoft Exchange Server Remote Code Execution Vulnerability
Una vulnerabilidad de Ejecución de Código Remota de Microsoft Exchange Server. . Este ID de CVE es diferente de CVE-2021-31196, CVE-2021-34473
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Microsoft Exchange Server. User interaction is required to exploit this vulnerability. The specific flaw exists within the parsing of CAB files. When handling filenames specified within a CAB file, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM.
*Credits:
Steven Seeley (mr_me) of Source Incite
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-14 CVE Reserved
- 2021-07-14 CVE Published
- 2024-08-03 CVE Updated
- 2024-10-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-21-826 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31206 | 2023-12-28 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Exchange Server Search vendor "Microsoft" for product "Exchange Server" | 2013 Search vendor "Microsoft" for product "Exchange Server" and version "2013" | cumulative_update_23 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Exchange Server Search vendor "Microsoft" for product "Exchange Server" | 2016 Search vendor "Microsoft" for product "Exchange Server" and version "2016" | cumulative_update_20 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Exchange Server Search vendor "Microsoft" for product "Exchange Server" | 2016 Search vendor "Microsoft" for product "Exchange Server" and version "2016" | cumulative_update_21 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Exchange Server Search vendor "Microsoft" for product "Exchange Server" | 2019 Search vendor "Microsoft" for product "Exchange Server" and version "2019" | cumulative_update_10 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Exchange Server Search vendor "Microsoft" for product "Exchange Server" | 2019 Search vendor "Microsoft" for product "Exchange Server" and version "2019" | cumulative_update_9 |
Affected
| ||||||