Attacker Value
Unknown
(1 user assessed)
Exploitability
Unknown
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
1

CVE-2021-41349

Disclosure Date: November 10, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.
Initial Access
Techniques
Validation
Validated

Description

Microsoft Exchange Server Spoofing Vulnerability This CVE ID is unique from CVE-2021-42305.

Add Assessment

1
Ratings
Technical Analysis

Active POCs are already being shared and can be used to exploit vulnerable sharepoint servers

https://github.com/0x0021h/expbox/blob/main/cve-2021-41349-poc.py

CVSS V3 Severity and Metrics
Base Score:
6.5 Medium
Impact Score:
3.6
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None

General Information

Vendors

  • Microsoft

Products

  • Microsoft Exchange Server 2013,
  • Microsoft Exchange Server 2016 Cumulative Update 21,
  • Microsoft Exchange Server 2019 Cumulative Update 10,
  • Microsoft Exchange Server 2016 Cumulative Update 22,
  • Microsoft Exchange Server 2019 Cumulative Update 11

Additional Info

Technical Analysis