Vulnerability Details : CVE-2018-0312
A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers when the software processes packet data. An attacker could exploit this vulnerability by sending a maliciously crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the device, which could allow the attacker to execute arbitrary code or cause a DoS condition on the device. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69962, CSCve02808, CSCve02810, CSCve02812, CSCve02819, CSCve02822, CSCve02831, CSCve04859.
Vulnerability category: OverflowInput validationExecute codeDenial of service
Products affected by CVE-2018-0312
- cpe:2.3:o:cisco:nexus_7000_firmware:8.1\(0.112\)s0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_7000_firmware:8.0\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_7000_firmware:7.3\(2\)d1\(0.49\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_5000_firmware:7.0\(0\)hsk\(0.357\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:firepower_9000_firmware:r211:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:firepower_9000_firmware:r231:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9000_firmware:8.1\(0\)bd\(0.20\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9000_firmware:8.1\(1\)s4:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:unified_computing_system_firmware:3.1\(3a\)a:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0312
2.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0312
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-0312
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: ykramarz@cisco.com (Secondary)
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-0312
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fx-os-cli-execution
Cisco FXOS and NX-OS Software Cisco Fabric Services Arbitrary Code Execution VulnerabilityVendor Advisory
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http://www.securitytracker.com/id/1041169
Cisco NX-OS Multiple Bugs Let Remote Users Deny Service and Execute Arbitrary Code and Let Remote Authenticated Users Gain Elevated Privileges - SecurityTrackerThird Party Advisory;VDB Entry
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http://www.securityfocus.com/bid/104515
Cisco FXOS and NX-OS Software CVE-2018-0312 Arbitrary Code Execution VulnerabilityThird Party Advisory;VDB Entry
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