7.5high

CVE-2000-0457in critical feed1 exploit

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 spa…

Published 26 y ago · modified 4 mo ago · JSON

CVSS
7.5
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
52.8%
percentile 99%
Public exploits
1
Exploit-DB

Summary

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.

Exploit prediction (EPSS)

52.75% probability of exploitation in the next 30 days, higher than 99% of all scored CVEs.

Exploits and detections

  • EDB-19908 Microsoft IIS 4.0/5.0 - Malformed Filename Request · remote · 2000-05-11

CVSS scores

Assigned byVersionScoreVector
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

References

  • marc.info /?l=bugtraq&m=95810120719608&w=2 · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • docs.microsoft.com /en-us/security-updates/securitybulletins/2000/ms00-031 · vendor-advisory, x_refsource_MS, x_transferred
  • exchange.xforce.ibmcloud.com /vulnerabilities/4448 · vdb-entry, x_refsource_XF, x_transferred
  • securityfocus.com /bid/1193 · vdb-entry, x_refsource_BID, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.