CVE-2006-6696
What it is
Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 3.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.4% in the next 30 days (EPSS).
- Severity: 6.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.4% · EPSS, next 30 days
- Weakness
- CWE-119 · Buffer errors
- Record status
- Modified
Affected
- Microsoft Windows 2000
- Microsoft Windows 2003 Server datacenter_edition
- Microsoft Windows 2003 Server enterprise_edition
- Microsoft Windows 2003 Server sp1
- Microsoft Windows 2003 Server Standard
- Microsoft Windows 2003 Server Web
- Microsoft Windows Vista
- Microsoft Windows Xp
Attack profile CVSS 2.0 · 6.9
- Attack vector
- Local
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
Raw vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2006-6696.md and follow it. Check whether this project is affected by CVE-2006-6696. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
References
- http://blogs.technet.com/msrc/archive/2006/12/22/new-report-of-a-windows-vulnerability.aspx
- http://groups.google.ca/group/microsoft.public.win32.programmer.kernel/browse_thread/thread/c5946bf40f227058/7bd7b5d66a4e5aff
- http://isc.sans.org/diary.php?n&storyid=1965
- http://lists.grok.org.uk/pipermail/full-disclosure/2006-December/051394.html
- http://research.eeye.com/html/alerts/zeroday/20061215.html
- http://secunia.com/advisories/23448
- http://securitytracker.com/id?1017433
- http://www.determina.com/security.research/vulnerabilities/csrss-harderror.html
- http://www.kuban.ru/forum_new/forum2/files/19124.html
- http://www.security.nnov.ru/Gnews944.html
- http://www.security.nnov.ru/files/messagebox.c
- http://www.securityfocus.com/archive/1/455061/100/0/threaded
- http://www.securityfocus.com/archive/1/455088/100/0/threaded
- http://www.securityfocus.com/archive/1/455104/100/0/threaded
- http://www.securityfocus.com/archive/1/455158/100/0/threaded
- http://www.securityfocus.com/archive/1/455546/100/0/threaded
- http://www.securityfocus.com/archive/1/466331/100/200/threaded
- http://www.securityfocus.com/bid/21688
- http://www.securityfocus.com/bid/23324
- http://www.vupen.com/english/advisories/2006/5120
- http://www.vupen.com/english/advisories/2007/1325
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-021
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1816
- http://blogs.technet.com/msrc/archive/2006/12/22/new-report-of-a-windows-vulnerability.aspx
- http://groups.google.ca/group/microsoft.public.win32.programmer.kernel/browse_thread/thread/c5946bf40f227058/7bd7b5d66a4e5aff