Cisco NX-OS 7.0(0.128)S0 on Nexus Command Line Interface copy path traversal

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4.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco NX-OS 7.0(0.128)S0 on Nexus. This affects an unknown function of the file copy of the component Command Line Interface. The manipulation leads to path traversal. This vulnerability is documented as CVE-2013-6975. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco NX-OS 7.0(0.128)S0 on Nexus (Router Operating System). This issue affects an unknown code of the file copy of the component Command Line Interface. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

Directory traversal vulnerability in the command-line interface in Cisco NX-OS 6.2(2a) and earlier allows local users to read arbitrary files via unspecified input, aka Bug ID CSCul05217.

The weakness was released 05/15/2014 with Cisco as CSCul05217 as confirmed security notice (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2013-6975 since 12/05/2013. The exploitation is known to be easy. An attack has to be approached locally. A simple authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue. The advisory points out:

An attacker could leverage the NX-OS ''copy'' command to duplicate the contents of arbitrary files on the device to a user writable area of the filesystem. As the new file will be owned by the authenticated user, the attacker will be able to view the contents.

The vulnerability scanner Nessus provides a plugin with the ID 77284 (Cisco NX-OS Arbitrary File Read Vulnerability (CSCul05217 / CSCul23419)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 7.0(0)ZD(1.8), 7.1(0)ZD(0.95), 7.0(0)FVX(0.66), 7.1(0)ARP(0.2) or 7.1(0)D1(0.43) eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93171), Tenable (77284), SecurityFocus (BID 67426†), SecurityTracker (ID 1030250†) and Vulnerability Center (SBV-45926†). tools.cisco.com is providing further details. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Cisco MDS 9000
  • Cisco Nexus 1000V up to 7000
  • Cisco Connected Grid Router 1000 Series
  • Cisco Unified Computing System Fabric Interconnect 6100/6200

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.5
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 77284
Nessus Name: Cisco NX-OS Arbitrary File Read Vulnerability (CSCul05217 / CSCul23419)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 100742
OpenVAS Name: Cisco NX-OS Software Arbitrary File Read Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: NX-OS 7.0(0)ZD(1.8)/7.1(0)ZD(0.95)/7.0(0)FVX(0.66)/7.1(0)ARP(0.2)/7.1(0)D1(0.43)

Timelineinfo

12/05/2013 🔍
05/15/2014 +161 days 🔍
05/15/2014 +0 days 🔍
05/15/2014 +0 days 🔍
05/15/2014 +0 days 🔍
05/16/2014 +1 days 🔍
05/17/2014 +1 days 🔍
05/20/2014 +3 days 🔍
08/20/2014 +92 days 🔍
08/25/2014 +5 days 🔍
06/19/2021 +2490 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCul05217
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-6975 (🔍)
GCVE (CVE): GCVE-0-2013-6975
GCVE (VulDB): GCVE-100-13241
X-Force: 93171 - Cisco NX-OS CLI directory traversal, Medium Risk
SecurityFocus: 67426 - Cisco NX-OS Software CVE-2013-6975 Directory Traversal Vulnerability
SecurityTracker: 1030250 - Cisco NX-OS Command Line Bug Lets Local Users Access Arbitrary Files
Vulnerability Center: 45926 - Cisco NX-OS 7.0(0.128)S0 and Earlier Local File System Read via Directory Traversal Attack, Medium

Misc.: 🔍

Entryinfo

Created: 05/17/2014 15:24
Updated: 06/19/2021 17:58
Changes: 05/17/2014 15:24 (54), 06/05/2017 10:05 (35), 06/19/2021 17:58 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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