THREATPORT/VULNERABILITY/CVE-2012-1015
HIGH SEVERITY

CVE-2012-1015

Kerberos 5 vulnerability

CVSS
9.3
EPSS
4.8%
EPSS pct
91th
Exploited
No known
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.
Affected vendor
Mit
Affected product
Kerberos 5
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2012-08-06

Risk analysis

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

Its EPSS score of 4.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2012-1015

  • Confirm whether Mit Kerberos 5 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2012-1015.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-1015

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2012-1015 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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