CVE-2020-0688 Exchange Exploitation via Web Log

 1title: CVE-2020-0688 Exchange Exploitation via Web Log
 2id: fce2c2e2-0fb5-41ab-a14c-5391e1fd70a5
 3status: test
 4description: Detects the exploitation of Microsoft Exchange vulnerability as described in CVE-2020-0688
 5references:
 6    - https://www.trustedsec.com/blog/detecting-cve-20200688-remote-code-execution-vulnerability-on-microsoft-exchange-server/
 7author: Florian Roth (Nextron Systems)
 8date: 2020-02-29
 9modified: 2023-01-02
10tags:
11    - attack.initial-access
12    - attack.t1190
13    - cve.2020-0688
14    - detection.emerging-threats
15logsource:
16    category: webserver
17detection:
18    selection1:
19        cs-method: 'GET'
20        cs-uri-query|contains:
21            - '/ecp/'
22            - '/owa/'
23    selection2:
24        cs-uri-query|contains: '__VIEWSTATE='
25    condition: all of selection*
26fields:
27    - c-ip
28    - c-dns
29falsepositives:
30    - Unknown
31level: critical

References

• Detecting CVE-2020-0688 Remote Code Execution Vulnerability on…

  

  In February 2020, Microsoft released a patch for all versions of the Microsoft Exchange server. This patch fixes a Remote Code Execution flaw that allows an attacker to send a specially crafted pay...

  
  Read More

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