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CVE

CVE-2000-0024

IIS does not properly canonicalize URLs, potentially allowing remote attackers to bypass access restrictions in third-pa

IIS does not properly canonicalize URLs, potentially allowing remote attackers to bypass access restrictions in third-party software via escape characters, aka the "Escape Character Parsing" vulnerability.

MEDIUM · CVSS 6.4 EPSS 0.12045
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 6% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0
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Affected Products & Versions

3
microsoft internet information serverall versions
microsoft site serverall versions
microsoft site server commerceall versions
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Detection Rules (IDS/IPS)

1
snort-communitySERVER-IIS encoding accessweb-application-activity
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
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Scoring & Timeline

6.4
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
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:L/Au:N/C:P/I:P/A:N
Published to NVD21 Dec 1999 · 05:00 AM
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References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://support.microsoft.com/default.aspx?scid=kb
http://www.acrossecurity.com/aspr/ASPR-1999-11-10-1-PUB.txt
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-061
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