Xerte Online Toolkits File Upload RCE via elfinder Connector
63Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 9.3epss 3.6%
from disclosure to weapon0 days
Published on NVDApr 22
metasploitApr 22
exploitation probability
3.6%top 12% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Xerte Online Toolkits versions 3.15 and earlier contain an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
thexerteproject · xerteonlinetoolkitspublic PoCs found — 1
cve_referencegithub.com/bootstrapbool/xerteonlinetoolkits-rceunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/bootstrapbool/xerteonlinetoolkits-rcehttps://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527https://www.vulncheck.com/advisories/xerte-online-toolkits-file-upload-rce-via-elfinder-connectorhttps://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkitshttps://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html