cbcvebase.
CVE-2023-26360
published 2023-03-23

CVE-2023-26360: Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by an Improper Access Control vulnerability that could…

PriorityP197critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
KEVITWEXPLOITInitial access
CISA Known Exploited Vulnerabilitydue 2023-04-05
Exploited in the wild
EPSS
97.34%
99.9th percentile
Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by an Improper Access Control vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.

Affected

3 ranges
VendorProductVersion rangeFixed in
adobecoldfusion——
adobecoldfusion——
adobecoldfusionunspecified – CF2018U15—

Detection & IOCsextracted from sources · hover to see the quote

url/CFIDE/adminapi/_datasource/setmsaccessRegistry.cfm↗
url/CFIDE/adminapi/_datasource/setsldatasource.cfm↗
url/CFIDE/adminapi/_datasource/setdsn.cfm↗
url/CFIDE/adminapi/_datasource/formatjdbcurl.cfm↗
url/CFIDE/adminapi/_datasource/getaccessdefaultsfromRegistry.cfm↗
url/CFIDE/adminapi/_datasource/geturldefaults.cfm↗
url/CFIDE/adminapi/customtags/l10n.cfm↗
url/CFIDE/adminapi/serverinstance.cfc↗
url/CFIDE/adminapi/servermonitoring.cfc↗
filenameUA4fp7R.aspx↗
filenameWRBYTR5750images.aspx↗
pathwwwroot\Images↗
filenamei.bat↗
filenameDisableDefender.ps1↗
command%windir%\system32\inetsrv\appcmd set config /section:httpLogging /dontLog:True↗
registryHKEY_LOCAL_MACHINE\SOFTWARE\FileZilla 3↗
hash8df9fa495892fc3d183917162746ef8fd9e438ff0d639264236db553b09629dc↗
hash3f15c4431ad4573344ad56e8384ebd62↗
hash311d1d50673fbfc40b84d94239cd4fa784269465↗
filenameApp_Web_dentsd54.dll↗
hash23dea3a74e3ff6a367754d02466db4c86ffda47efe09529d3aad52b0d5694b30↗
hasha213873eb55dc092ddf3adbeb242bd44↗
hash3650899c669986e5f4363fdbd6cf5b78a6fcd484↗
hashfca94b8b718357143c53620c6b360470↗
filenamedatast.dll↗
filenameVERSION.dll↗
pathc:\Users\Public\Music\data↗
pathC:\Windows\branding\data↗
pathc:\microsoft.net\framework64\v4.0.30319\temporary asp.net files\root↗
pathc:\sql\tools\attunitycdcoracle\x64\1033↗
pathc:\Windows\branding\data↗
bytes↗
ONEPIECE
bytes↗
x_best_911
  • →Webshell activity can be detected by monitoring for OS commands (e.g., whoami) spawning from w3wp.exe (IIS worker process), which is a telltale sign of webshell execution. ↗
  • →Hunt for .aspx files placed in image directories (e.g., wwwroot\Images) as a sign of steganographic webshell deployment post-ColdFusion exploitation. ↗
  • →Detect the string 'ONEPIECE' in webshell responses or file contents — it appeared in all webshells used throughout this CVE-2023-26360 attack chain. ↗
  • →Alert on HTTP requests targeting CFIDE/adminapi paths (e.g., /CFIDE/adminapi/_datasource/, /CFIDE/adminapi/serverinstance.cfc) as these are known exploitation targets for CVE-2023-26360 and CVE-2023-29298. ↗
  • →Detect IIS log disabling via appcmd: monitor for execution of '%windir%\system32\inetsrv\appcmd set config /section:httpLogging /dontLog:True' as a post-exploitation defence impairment step. ↗
  • →Alert on bulk taskkill commands targeting security tools (sysmon.exe, sysmon64.exe, filebeat.exe, cyserver.exe, SentinelMemoryScanner.exe, SentinelUI.exe, DRwebcom.exe) followed by sc stop/delete for the same services. ↗
  • →Hunt for .NET web shell DLLs matching the filename pattern App_Web_{8}[a-z0-9].dll dropped into the ASP.NET temporary files path, associated with post-exploitation activity following CVE-2023-26360. ↗
  • →Monitor for timestomped MAC metadata on newly created webshell files, used by threat actors to corrupt forensic timelines after ColdFusion exploitation. ↗
  • ·The exact initial access mechanism could not be confirmed due to insufficient logging; ColdFusion exploitation is inferred from historical log artifacts, not direct observation. ↗
  • ·The Tropic Trooper/Securelist attribution of CVE-2023-26360 exploitation is assessed with only moderate confidence based on telemetry overlap, not confirmed forensic evidence. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vulncheck8.6HIGH
cisa9.8CRITICAL
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