cisco-sa-20180620-fx-os-cli-execution: Cisco FXOS and NX-OS Software Cisco Fabric Services Arbitrary Code Execution Vulnerability
First published: Wed Jun 20 2018(Updated: )
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fx-os-cli-execution This advisory is part of the June 2018 Cisco FXOS and NX-OS Software Security Advisory Collection, which includes 24 Cisco Security Advisories that describe 24 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: June 2018 Cisco FXOS and NX-OS Software Security Advisory Collection.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco FXOS Software | =2.2.2<2.2.2.17=2.2.1<2.2.1.70=2.1.1<2.1.1.86=2.0<2.0.1.153=1.1<1.1.4.179 | 2.2.2.17 2.2.1.70 2.1.1.86 2.0.1.153 1.1.4.179 |
| Cisco NX-OS Software | =8.1<8.1(1a)=7.3<8.1(1a)=6.2<6.2(21)=5.2<6.2(21) | 8.1(1a) 8.1(1a) 6.2(21) 6.2(21) |
| Cisco NX-OS Software | ||
| Cisco NX-OS Software | =6.2<6.2(20) | 6.2(20) |
| Cisco NX-OS Software | =3.2<3.2(2b)=3.1<3.2(2b)=3.0<3.2(2b)=2.5<3.2(2b)=2.2<3.2(2b)=Prior to 2.2<3.2(2b) | 3.2(2b) 3.2(2b) 3.2(2b) 3.2(2b) 3.2(2b) 3.2(2b) |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-20180620-fx-os-cli-execution?
The severity of cisco-sa-20180620-fx-os-cli-execution is critical, with a severity rating of 9.8 out of 10.
How does cisco-sa-20180620-fx-os-cli-execution affect Cisco FXOS Software?
cisco-sa-20180620-fx-os-cli-execution affects Cisco FXOS Software versions 2.2.2 up to exclusive 2.2.2.17, 2.2.1 up to exclusive 2.2.1.70, 2.1.1 up to exclusive 2.1.1.86, 2.0 up to exclusive 2.0.1.153, and 1.1 up to exclusive 1.1.4.179.
How does cisco-sa-20180620-fx-os-cli-execution affect Cisco NX-OS Software?
cisco-sa-20180620-fx-os-cli-execution affects Cisco NX-OS Software versions 8.1 up to exclusive 8.1(1a), 7.3 up to exclusive 8.1(1a), 6.2 up to exclusive 6.2(21), and 5.2 up to exclusive 6.2(21).
What is the vulnerability description of cisco-sa-20180620-fx-os-cli-execution?
cisco-sa-20180620-fx-os-cli-execution is a vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software that could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device.
How can I fix the cisco-sa-20180620-fx-os-cli-execution vulnerability?
To fix the cisco-sa-20180620-fx-os-cli-execution vulnerability, apply the available patches and updates provided by Cisco.
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- vendor/cisco
- canonical/cisco fxos software
- version/cisco fxos software/2.2.2
- version/cisco fxos software/2.2.1
- version/cisco fxos software/2.1.1
- version/cisco fxos software/2.0
- version/cisco fxos software/1.1
- canonical/cisco nx-os software
- version/cisco nx-os software/8.1
- version/cisco nx-os software/7.3
- version/cisco nx-os software/6.2
- version/cisco nx-os software/5.2
- version/cisco nx-os software/3.2
- version/cisco nx-os software/3.1
- version/cisco nx-os software/3.0
- version/cisco nx-os software/2.5
- version/cisco nx-os software/2.2
- version/cisco nx-os software/prior to 2.2