| VID |
26858 |
| Severity |
40 |
| Port |
139,445 |
| Protocol |
TCP |
| Class |
SMB |
| Detailed Description |
Microsoft Security Update for August 2021 is not installed. The remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities
- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-26424, CVE-2021-26432, CVE-2021-34530, CVE-2021-34533, CVE-2021-34534, CVE-2021-34535, CVE-2021-36936, CVE-2021-36937, CVE-2021-36947)
- A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-36942)
- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges. (CVE-2021-26425, CVE-2021-26426, CVE-2021-34483, CVE-2021-34484, CVE-2021-34486, CVE-2021-34487, CVE-2021-34536, CVE-2021-34537, CVE-2021-36948)
- An memory corruption vulnerability exists. An attacker can exploit this to corrupt the memory and cause unexpected behaviors within the system/application. (CVE-2021-34480)
- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-26433, CVE-2021-36926, CVE-2021-36932, CVE-2021-36933, CVE-2021-36938)
* Note: This check requires an account with administrative privileges which can log into the host to scan. Absence of this condition will result in the check not being performed and a False Negative for all vulnerable hosts.
* References:
https://support.microsoft.com/en-us/help/4009469
https://support.microsoft.com/en-us/help/4009470
https://support.microsoft.com/en-us/help/4009471
https://support.microsoft.com/en-us/help/4000825
* Platforms Affected:
Windows Server 2008 R2 SP1
Windows Server 2008 R2 x64 SP1
Windows 8.1
Windows Server 2012
Windows Server 2012 R2
Windows 10
Windows Server 2016 |
| Recommendation |
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin August 2021 Microsoft security update at
https://support.microsoft.com/en-us/help/4009469
https://support.microsoft.com/en-us/help/4009470
https://support.microsoft.com/en-us/help/4009471
https://support.microsoft.com/en-us/help/4000825
-- OR --
Patches for Windows platforms are also available from the Microsoft Windows Update Web site, http://windowsupdate.microsoft.com. Windows Update detects what version of Windows you are running and offers the appropriate patch. |
| Related URL |
CVE-2021-26424,CVE-2021-26425,CVE-2021-26426,CVE-2021-26432,CVE-2021-26433,CVE-2021-34480,CVE-2021-34481,CVE-2021-34483,CVE-2021-34484 (CVE) |
| Related URL |
(SecurityFocus) |
| Related URL |
(ISS) |
|
