THREATPORT/VULNERABILITY/CVE-1999-1397
HIGH SEVERITY

CVE-1999-1397

Index Server vulnerability

CVSS
7.5
EPSS
11.7%
EPSS pct
96th
Exploited
No known
Index Server 2.0 on IIS 4.0 stores physical path information in the ContentIndex\Catalogs subkey of the AllowedPaths registry key, whose permissions allows local and remote users to obtain the physical paths of directories that are being indexed.
Affected vendor
Microsoft
Affected product
Index Server
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published
1999-03-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 11.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-1999-1397

  • Confirm whether Microsoft Index Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-1999-1397.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-1999-1397

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-1999-1397 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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