cbcvebase.
CVE-2010-3333
published 2010-11-10

CVE-2010-3333: Stack-based buffer overflow in Microsoft Office XP SP3, Office 2003 SP3, Office 2007 SP2, Office 2010, Office 2004 and 2008 for Mac, Office for Mac 2011, and…

PriorityP185high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-03-24
Exploited in the wild
EPSS
89.39%
99.8th percentile
Stack-based buffer overflow in Microsoft Office XP SP3, Office 2003 SP3, Office 2007 SP2, Office 2010, Office 2004 and 2008 for Mac, Office for Mac 2011, and Open XML File Format Converter for Mac allows remote attackers to execute arbitrary code via crafted RTF data, aka "RTF Stack Buffer Overflow Vulnerability."

Affected

7 ranges
VendorProductVersion rangeFixed in
microsoftoffice——
microsoftoffice——
microsoftoffice——
microsoftoffice——
microsoftoffice——
microsoftoffice——
microsoftoffice——

Detection & IOCsextracted from sources · hover to see the quote

domainnewsumbrella[.]net↗
urlnewsumbrella[.]net/ne3s/lat3st/w0rld/systemupdateAPI[.]exe↗
urlnewsumbrella[.]net/ne3s/file[.]exe↗
hash76429f8515768f9f5def697e71071f51↗
hashd04ce934561934f758d77dfa944bd6743dd82cff↗
hash7757517ae6b4d513a57826f9ab65bd070d99d25ac526cfae3e9955c3c7cd457a↗
filenamesystemupdateAPI.exe↗
filenameWindowsSecurityService2.exe↗
filenameWindowsSecurityService3.exe↗
filenamecydll.dll↗
pathc:\system\screenshot.bmp↗
pathc:\system\camera.jpg↗
pathc:\system\audio.ogg↗
pathC:\Documents and Settings\<username>\Local Settings\temp\<random>.exe↗
registryHKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"System Application" = c:\system\WindowsSecurityService[2 or 3].exe↗
hashe4dfcf3db512260e1a4ff414907610d5d5279143fa9ade9219d8691be02e512f↗
mutexFlag_Running↗
mutexDownload_Flag↗
mutexRunning_Flag↗
mutexFlag_Runnimg_2810↗
mutexFlag_Running_2016↗
mutexFlag_Running_2014RC4↗
path%USERPROFILE%\AppData\Roaming\EverNoteService\↗
snort↗
SID 21964
snort↗
SID 22095
snort↗
SID 22101
snort↗
SID 22102
  • →Detect the CVE-2010-3333 RTF exploit payload via the malicious service's C2 beacon: look for HTTP GET requests containing custom headers 'Extra-Data-Bind', 'Extra-Data-Space', and 'Extra-Data' — the last carrying the initial compromise beacon. ↗
  • →Snort SIDs 22101 and 22102 directly detect the CVE-2010-3333 malicious RTF file; SIDs 21964 and 22095 detect the post-exploitation C2 beacon traffic from the dropped service (cydll.dll). ↗
  • →Rover establishes persistence via HKCU Run key with value name 'System Application' pointing to c:\system\WindowsSecurityService[2 or 3].exe — monitor this registry path for the specific value name. ↗
  • →Rover sends heartbeat HTTP traffic to 46.166.165.254 every 5 seconds and exfiltrates screenshots every 60 minutes and keylog data every 10 seconds — high-frequency periodic HTTP beaconing to this IP is a strong indicator. ↗
  • →Aoqin Dragon's Mongall backdoor can be identified by its four distinct mutex names: Flag_Running, Download_Flag, Running_Flag, Flag_Runnimg_2810, Flag_Running_2016, Flag_Running_2014RC4 — scan process memory or sandbox reports for these strings. ↗
  • →The CVE-2010-3333 exploit shellcode drops a randomly-named .exe into the user's Local Settings\temp directory — monitor for executable creation in that path immediately following Word/RTF document open events. ↗
  • ·The Mongall backdoor's encoding/encryption algorithm varies by mutex version: Base64 (type 3) for Flag_Running/Download_Flag/Running_Flag, modified Base64 (type 2) for Flag_Runnimg_2810/Flag_Running_2016, and RC4+Base64 (type 1) for Flag_Running_2014RC4 — decryption scripts must handle all three variants. ↗
  • ·The systemupdateAPI.exe downloader was no longer hosted on newsumbrella[.]net at time of analysis; the domain may rotate payloads under the same /ne3s/ parent directory path. ↗

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vulncheck7.8HIGH
cisa7.8HIGH
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