Vulnerability Name:

CVE-2013-4548 (CCN-88624)

Assigned:2013-11-08
Published:2013-11-08
Updated:2019-10-09
Summary: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.
CVSS v3 Severity:4.6 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.0 Medium (CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P)
4.4 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.0 Medium (CCN CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P)
4.4 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-264
Vulnerability Consequences:Gain Privileges
References:Source: CCN
Type: IBM SECURITY ADVISORY
AIX OpenSSH Vulnerability

Source: MITRE
Type: CNA
CVE-2013-4548

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2013:1726

Source: HP
Type: UNKNOWN
SSRT101487

Source: MLIST
Type: UNKNOWN
[oss-security] 20131107 Re: CVE Request - OpenSSH

Source: CCN
Type: SA55594
OpenSSH AES-GCM Ciphers Privilege Escalation Vulnerability

Source: CCN
Type: OpenSSH Web site
gcmrekey.adv

Source: CONFIRM
Type: Vendor Advisory
http://www.openssh.com/txt/gcmrekey.adv

Source: CCN
Type: OSVDB ID: 99551
OpenSSH sshd Process AES-GCM Cipher Handling Message Authentication Code (MAC) Initialization Failure Uninitialized Callback Pointer Usage Privilege Escalation

Source: CCN
Type: BID-63605
OpenSSH 'sshd' Process Remote Memory Corruption Vulnerability

Source: UBUNTU
Type: UNKNOWN
USN-2014-1

Source: XF
Type: UNKNOWN
openssh-cve20134548-priv-esc(88624)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2013-4548

Vulnerable Configuration:Configuration 1:
  • cpe:/a:openbsd:openssh:6.2:-:*:*:*:*:*:*
  • OR cpe:/a:openbsd:openssh:6.3:-:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:openbsd:openssh:6.2:-:*:*:*:*:*:*
  • OR cpe:/a:openbsd:openssh:6.3:-:*:*:*:*:*:*
  • AND
  • cpe:/o:ibm:aix:6.1:*:*:*:*:*:*:*
  • OR cpe:/o:ibm:aix:5.3:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:vios:1.5:*:*:*:*:*:*:*
  • OR cpe:/o:ibm:aix:7.1:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:vios:2.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20134548
    V
    		CVE-2013-4548
    2017-03-01
    oval:org.mitre.oval:def:28406
    V
    		HP-UX running HP Secure Shell, Remote Denial of Service (DoS) and other Vulnerabilities
    2015-04-20
    oval:org.mitre.oval:def:19115
    P
    		USN-2014-1 -- openssh vulnerability
    2014-06-30
    oval:org.mitre.oval:def:22458
    V
    		AIX OpenSSH Vulnerability
    2014-04-14
    oval:com.ubuntu.precise:def:20134548000
    V
    		CVE-2013-4548 on Ubuntu 12.04 LTS (precise) - high.
    2013-11-08
    BACK
    openbsd openssh 6.2
    openbsd openssh 6.3
    openbsd openssh 6.2
    openbsd openssh 6.3
    ibm aix 6.1
    ibm aix 5.3
    ibm vios 1.5
    ibm aix 7.1
    ibm vios 2.0