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Fencer Intel
medium 4.3

CVE-2012-6137 json

rhn-migrate-classic-to-rhsm tool in Red Hat subscription-manager does not verify the Red Hat Network Classic server's X.509 certificate whe…

published 2013-05-21 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5998

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

rhn-migrate-classic-to-rhsm tool in Red Hat subscription-manager does not verify the Red Hat Network Classic server's X.509 certificate when migrating to a Certificate-based Red Hat Network, which allows remote man-in-the-middle attackers to obtain sensitive information such as user credentials.

Patch / fix

  • subscription-manager RHEL 5 1.0.24.1-1.el5_9
  • subscription-manager RHEL 6 1.1.23.1-1.el6_4
  • subscription-manager-gui RHEL 5 1.0.24.1-1.el5_9
  • subscription-manager-gui RHEL 6 1.1.23.1-1.el6_4
  • subscription-manager-firstboot RHEL 5 1.0.24.1-1.el5_9
  • subscription-manager-firstboot RHEL 6 1.1.23.1-1.el6_4
  • subscription-manager-migration RHEL 5 1.0.24.1-1.el5_9
  • subscription-manager-migration RHEL 6 1.1.23.1-1.el6_4

red hat advisories RHSA-2013:0788

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-6137 updated cvss 4.3

subscription-manager: rhn-migrate-classic-to-rhsm missing SSL certificate verification

  • Red Hat Enterprise Linux (v. 5 server) subscription-manager 1.0.24.1-1.el5_9, subscription-manager-gui 1.0.24.1-1.el5_9, subscription-manager-firstboot 1.0.24.1-1.el5_9, subscription-manager-migration 1.0.24.1-1.el5_9 Red Hat Enterprise Linux Desktop (v. 6) subscription-manager 1.1.23.1-1.el6_4, subscription-manager-gui 1.1.23.1-1.el6_4, subscription-manager-firstboot 1.1.23.1-1.el6_4, subscription-manager-migration 1.1.23.1-1.el6_4 Red Hat Enterprise Linux HPC Node (v. 6) subscription-manager 1.1.23.1-1.el6_4, subscription-manager-gui 1.1.23.1-1.el6_4, subscription-manager-firstboot 1.1.23.1-1.el6_4, subscription-manager-migration 1.1.23.1-1.el6_4 Red Hat Enterprise Linux HPC Node Optional (v. 6) subscription-manager 1.1.23.1-1.el6_4, subscription-manager-gui 1.1.23.1-1.el6_4, subscription-manager-firstboot 1.1.23.1-1.el6_4, subscription-manager-migration 1.1.23.1-1.el6_4 Red Hat Enterprise Linux Server (v. 6) subscription-manager 1.1.23.1-1.el6_4, subscription-manager-gui 1.1.23.1-1.el6_4, subscription-manager-firstboot 1.1.23.1-1.el6_4, subscription-manager-migration 1.1.23.1-1.el6_4 Red Hat Enterprise Linux Workstation (v. 6) subscription-manager 1.1.23.1-1.el6_4, subscription-manager-gui 1.1.23.1-1.el6_4, subscription-manager-firstboot 1.1.23.1-1.el6_4, subscription-manager-migration 1.1.23.1-1.el6_4
    fixed: vendor fix RHSA-2013:0788

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-255 Credentials Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.