Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2022-21978 |
CWE-ID | CWE-264 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Microsoft Exchange Server Server applications / Mail servers |
Vendor | Microsoft |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU62993
Risk: Low
CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-21978
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local administrator to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Microsoft Exchange Server, which leads to security restrictions bypass and privilege escalation.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMicrosoft Exchange Server: 2013 Cumulative Update 23 15.00.1497.002 - 2019 Cumulative Update 12 15.02.1118.007
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21978
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.