What’s Vulnerable › Vulnerabilities

CVE-2015-1777

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-04-12 · updated 2026-06-17
• Weakness: CWE-295

Description

rhnreg_ks in Red Hat Network Client Tools (aka rhn-client-tools) on Red Hat Gluster Storage 2.1 and Enterprise Linux (RHEL) 5, 6, and 7 does not properly validate hostnames in X.509 certificates from SSL servers, which allows remote attackers to prevent system registration via a man-in-the-middle attack.

Affected products

• RedHat Rhn-Client-Tools: all versions

References

• http://www.openwall.com/lists/oss-security/2015/03/04/7
• http://www.securityfocus.com/bid/72943
• https://bugzilla.redhat.com/show_bug.cgi?id=1198740
• http://www.openwall.com/lists/oss-security/2015/03/04/7
• http://www.securityfocus.com/bid/72943
• https://bugzilla.redhat.com/show_bug.cgi?id=1198740

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