ID |
CVE-2018-0381
|
Summary |
A vulnerability in the Cisco Aironet Series Access Points (APs) software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to a deadlock condition that may occur when an affected AP attempts to dequeue aggregated traffic that is destined to an attacker-controlled wireless client. An attacker who can successfully transition between multiple Service Set Identifiers (SSIDs) hosted on the same AP while replicating the required traffic patterns could trigger the deadlock condition. A watchdog timer that detects the condition will trigger a reload of the device, resulting in a DoS condition while the device restarts. |
References |
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Vulnerable Configurations |
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cpe:2.3:o:cisco:aironet_access_points:8.2\(166.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.2\(166.0\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.2\(167.3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.2\(167.3\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.3\(133.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.3\(133.0\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.3\(141.10\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.3\(141.10\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.5\(120.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.5\(120.0\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.7\(1.96\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.7\(1.96\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.7\(1.99\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.7\(1.99\):*:*:*:*:*:*:*
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cpe:2.3:o:cisco:aironet_access_points:8.7\(1.107\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_access_points:8.7\(1.107\):*:*:*:*:*:*:*
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CVSS |
Base: | 5.5 (as of 13-09-2021 - 11:21) |
Impact: | |
Exploitability: | |
|
CWE |
CWE-667 |
CAPEC |
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Leveraging Race Conditions via Symbolic Links
This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to her. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file she will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.
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Forced Deadlock
The adversary triggers and exploits a deadlock condition in the target software to cause a denial of service. A deadlock can occur when two or more competing actions are waiting for each other to finish, and thus neither ever does. Deadlock conditions can be difficult to detect.
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Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with his version and cause the system to read the malicious file.
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Access |
Vector | Complexity | Authentication |
ADJACENT_NETWORK |
LOW |
SINGLE |
|
Impact |
Confidentiality | Integrity | Availability |
NONE |
NONE |
COMPLETE |
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cvss-vector
via4
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AV:A/AC:L/Au:S/C:N/I:N/A:C
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refmap
via4
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bid | 105685 | cisco | 20181017 Cisco Aironet 1560, 1800, 2800, and 3800 Series Access Points Denial of Service Vulnerability | sectrack | 1041929 |
|
Last major update |
13-09-2021 - 11:21 |
Published |
17-10-2018 - 22:29 |
Last modified |
13-09-2021 - 11:21 |