The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.
Published 2013-11-08 15:55:14
Updated 2019-10-09 23:08:18
Source Red Hat, Inc.
View at NVD,   CVE.org

Threat overview for CVE-2013-4548

Top countries where our scanners detected CVE-2013-4548
Top open port discovered on systems with this issue 22
IPs affected by CVE-2013-4548 54,671
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2013-4548!
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Exploit prediction scoring system (EPSS) score for CVE-2013-4548

0.42%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2013-4548

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.0
MEDIUM AV:N/AC:M/Au:S/C:P/I:P/A:P
6.8
6.4
NIST

CWE ids for CVE-2013-4548

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2013-4548

Products affected by CVE-2013-4548

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