PT-2017-2808 · Cisco · Cisco Application Policy Infrastructure Controller
Published
2017-08-16
·
Updated
2019-10-03
·
CVE-2017-6768
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Cisco Application Policy Infrastructure Controller (APIC) versions 1.1(0.920a) through 1.1(3f)
Cisco Application Policy Infrastructure Controller (APIC) versions 1.2 Base through 1.2.2
Cisco Application Policy Infrastructure Controller (APIC) versions 1.3(1) through 1.3(2f)
Cisco Application Policy Infrastructure Controller (APIC) versions 2.0 Base through 2.0(1)
Description
A vulnerability in the build procedure for certain executable system files installed at boot time on Cisco Application Policy Infrastructure Controller (APIC) devices could allow an authenticated, local attacker to gain root-level privileges. The vulnerability is due to a custom executable system file that was built to use relative search paths for libraries without properly validating the library to be loaded. An attacker could exploit this vulnerability by authenticating to the device and loading a malicious library that can escalate the privilege level. A successful exploit could allow the attacker to gain root-level privileges and take full control of the device. The attacker must have valid user credentials to log in to the device.
Recommendations
For versions 1.1(0.920a) through 1.1(3f), consider disabling the custom executable system file until a patch is available.
For versions 1.2 Base through 1.2.2, restrict access to the vulnerable library to minimize the risk of exploitation.
For versions 1.3(1) through 1.3(2f), avoid using relative search paths for libraries until the issue is resolved.
For versions 2.0 Base through 2.0(1), consider implementing additional access controls to prevent malicious library loading.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Untrusted Search Path
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Related Identifiers
Affected Products
Cisco Application Policy Infrastructure Controller