Home/CVE/The URL validation functionality in Microsoft Internet Explorer 5.01, 6, 6 SP1, 7 and 8, and the ShellExecute API functi
CVE

CVE-2010-0027

The URL validation functionality in Microsoft Internet Explorer 5.01, 6, 6 SP1, 7 and 8, and the ShellExecute API functi

The URL validation functionality in Microsoft Internet Explorer 5.01, 6, 6 SP1, 7 and 8, and the ShellExecute API function in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2, does not properly process input parameters, which allows remote attackers to execute arbitrary local programs via a crafted URL, aka "URL Validation Vulnerability.".

HIGH · CVSS 9.3 EPSS 0.50105
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  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

8
microsoft internet explorerall versions
microsoft windows 7all versions
microsoft windows server 2003all versions
microsoft windows server 2008all versions
microsoft windows vistaall versions
microsoft windows xpall versions
microsoft windows 2000all versions
microsoft windows 2003 serverall versions
⚠

Public Exploits & PoCs

1
remoteMicrosoft Internet Explorer 8 - URI Validation Remote Code Executionverified
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Detection Rules (IDS/IPS)

1
et-openET WEB_CLIENT Possible Microsoft Internet Explorer URI Validation Remote Code Execution Attemptattempted-user
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
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Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumInternet Explorer DisableFirstRunCustomize Enabled
productmediumInternet Explorer Autorun Keys Modification
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Scoring & Timeline

9.3
HIGH · CVSS v2 (legacy) · secure@microsoft.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Published to NVD22 Jan 2010 · 10:00 PM
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/archive/1/509470/100/0/threaded
http://www.us-cert.gov/cas/techalerts/TA10-040A.htmlUS Government Resource
http://www.zerodayinitiative.com/advisories/ZDI-10-016/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-002
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-007
https://exchange.xforce.ibmcloud.com/vulnerabilities/55773
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