Vulnerability in Microsoft Internet Information Server
CVE-2001-0004
IIS 5.0 and 4.0 allows remote attackers to read the source code for executable web server programs by appending "%3F+.htr" to the requested URL, which causes the files to be parsed by the .HTR ISAPI extension, aka a variant of the "File Fragment Reading via .HTR" vulnerability.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.282 (98.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.282 · newest: 0.282 · change: 0.000
Affected products
- Microsoft Internet Information Server — versions 4.0
- Microsoft Internet Information Services — versions 5.0
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/2313 (vdb-entry)
- exchange.xforce.ibmcloud.com/vulnerabilities/5903 (vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-004 (vendor-advisory)
- marc.info/ (mailing-list)
Frequently asked questions
- What is CVE-2001-0004?
- CVE-2001-0004 is a vulnerability in Microsoft Internet Information Server. Published 2001-02-12.
- Is CVE-2001-0004 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.