AD Manager Plus 7122 - Remote Code Execution (RCE)

🗓️ 01 Apr 2023 00:00:00Reported by Chan Nyein WaiType

exploitdb🔗 www.exploit-db.com👁 385 Views

AD Manager Plus 7122 - Remote Code Execution (RCE) by Chan Nyein Wai & Thura Moe Myint. Log4j vulnerability exploited to achieve full RCE. Zoho rewarded a bonus bounty for the report. Mitigation: Update to version higher than 7122.

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# Exploit Title: AD Manager Plus 7122 - Remote Code Execution (RCE)
# Exploit Author: Chan Nyein Wai & Thura Moe Myint
# Vendor Homepage: https://www.manageengine.com/products/ad-manager/
# Software Link: https://www.manageengine.com/products/ad-manager/download.html
# Version: Ad Manager Plus Before 7122
# Tested on: Windows
# CVE : CVE-2021-44228
# Github Repo: https://github.com/channyein1337/research/blob/main/Ad-Manager-Plus-Log4j-poc.md

### Description

In the summer of 2022, I have been doing security engagement on Synack
Red Team in the collaboration with my good friend (Thura Moe Myint).
At that time, Log4j was already widespread on the internet. Manage
Engine had already patched the Ad Manager Plus to prevent it from
being affected by the Log4j vulnerability. They had mentioned that
Log4j was not affected by Ad Manager Plus. However, we determined that
the Ad Manager Plus was running on our target and managed to exploit
the Log4j vulnerability.

### Exploitation

First, Let’s make a login request using  proxy.

Inject the following payload in the ```methodToCall``` parameter in
the ```ADSearch.cc``` request.

Then you will get the dns callback with username in your burp collabrator.




### Notes

When we initially reported this vulnerability to Synack, we only
managed to get a DNS callback and our report was marked as LDAP
injection. However, we attempted to gain full RCE on the host but were
not successful. Later, we discovered that Ad Manager Plus was running
on another target, so we tried to get full RCE on that target. We
realized that there was a firewall and an anti-virus running on the
machine, so most of our payloads wouldn't work. After spending a
considerable amount of time , we eventually managed to  bypass the
firewall and anti-virus, and achieve full RCE.

### Conclusion

We had already informed Zoho about the log4j vulnerability, and even
after it was fixed, they decided to reward us with a bonus bounty for
our report.

### Mitigation

Updating to a version of Ad Manager Plus higher than 7122 should
resolve the issue.

01 Apr 2023 00:00Current

8.8High risk

Vulners AI Score8.8

CVSS 29.3

CVSS 3.110

EPSS0.94358

SSVC