CVE-2000-0457 — Vulnetix

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CVE-2000-0457 PUBLISHED CVSS 7.5 HIGH

ISM.DLL in IIS 4.0 and 5.0 allows remote attackers to read file contents by requesting the file and appending a large number of encoded spaces (%20) and terminated with a .htr extension, aka the ".HTR File Fragment Reading" or "File Fragment Reading via .HTR" vulnerability.

EPSS 84.39% · 99.3th percentile

Risk Scores

CVSS v2.0

7.5

EPSS Score

84.39%

99.3th percentile

Affected Products

Vendor	Product	Versions
n/a	n/a	n/a
microsoft	internet_information_services	5.0
microsoft	internet_information_server	4.0

Timeline

May 11, 2000 CVE Published
Feb 4, 2022 EPSS Score
May 19, 2022 EPSS Score
Jul 10, 2022 EPSS Score
Oct 23, 2022 EPSS Score
Dec 14, 2022 EPSS Score
Mar 7, 2023 EPSS Score
Mar 28, 2023 EPSS Score
Jul 10, 2023 EPSS Score
Jul 18, 2023 EPSS Score
Oct 22, 2023 EPSS Score
Feb 3, 2024 EPSS Score

References

20000511 Alert: IIS ism.dll exposes file contents mailing-list
MS00-031 vendor-advisory
iis-ism-file-access(4448) vdb
1193 vdb
https://nvd.nist.gov/vuln/detail/CVE-2000-0457 advisory

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