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취약점ID 26859
위험도 40
포트 139.445
프로토콜 TCP
분류 SMB
상세설명 Microsoft Security Update for September 2021 is not installed. The remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities

- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-36954, CVE-2021-36955, CVE-2021-36963, CVE-2021-36964, CVE-2021-36966, CVE-2021-36967, CVE-2021-36973, CVE-2021-36974, CVE-2021-36975, CVE-2021-38628, CVE-2021-38630, CVE-2021-38633, CVE-2021-38634, CVE-2021-38638, CVE-2021-38639, CVE-2021-38667, CVE-2021-38671, CVE-2021-40447)

- An memory corruption vulnerability exists. An attacker can exploit this to corrupt the memory and cause unexpected behaviors within the system/application.
(CVE-2021-26435)

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-36960, CVE-2021-36962, CVE-2021-36969, CVE-2021-36972, CVE-2021-38629, CVE-2021-38635, CVE-2021-38636, CVE-2021-38637)

- A security feature bypass vulnerability exists. An attacker can exploit this and bypass the security feature and perform unauthorized actions compromising the integrity of the system/application.
(CVE-2021-38624, CVE-2021-38632)

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-36965, CVE-2021-36958, CVE-2021-40444))

- A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-36961)

- A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-36959)

* 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
해결책 다음 마이크로소프트 보안 게시물 2021년 9월 Microsoft 보안 업데이트를 참조하여 시스템에 대한 적절한 패치를 적용한다.

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
-- 또는 --
Windows 플랫폼들을 위한 패치들은 또한 Microsoft Windows Update 웹 사이트인 http://windowsupdate.microsoft.com 에서도 구할 수 있다. Windows Update는 사용 중인 Windows의 버전을 자동으로 찾아내고 적절한 패치를 제공해 준다.
관련 URL CVE-2021-36958,CVE-2021-40444,CVE-2021-36954,CVE-2021-36955,CVE-2021-36959,CVE-2021-36960,CVE-2021-36961,CVE-2021-36962,CVE-2021-36963 (CVE)
관련 URL (SecurityFocus)
관련 URL (ISS)