Description
SysAid Help Desk before 15.2 allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of nested entity references in an XML document to (1) /agententry, (2) /rdsmonitoringresponse, or (3) /androidactions, aka an XML Entity Expansion (XEE) attack.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- SysAid Help Desk 14.4 - Multiple Vulnerabilities EDB-43885 · webapps · Jun 10, 2015
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20150603 [Multiple CVE's]: various critical vulnerabilities in SysAid Help Desk (RCE, file download, DoS, etc) mailing-list
- 20150603 [Multiple CVE's]: various critical vulnerabilities in SysAid Help Desk (RCE, file download, DoS, etc) mailing-list
- http://packetstormsecurity.com/files/132138/SysAid-Help-Desk-14.4-Code-Execution-Denial-Of-Service-Traversal-SQL-Injection.html
- 75038 vdb-entry
- https://www.sysaid.com/blog/entry/sysaid-15-2-your-voice-your-service-desk