Cisco NX-OS on Nexus Smart Call Home memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Cisco NX-OS on Nexus. Affected is an unknown function of the component Smart Call Home. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2014-3261. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco NX-OS on Nexus (Router Operating System) (affected version not known). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component Smart Call Home. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the Smart Call Home implementation in Cisco NX-OS on Fabric Interconnects in Cisco Unified Computing System 1.4 before 1.4(1i), NX-OS 5.0 before 5.0(3)U2(2) on Nexus 3000 devices, NX-OS 4.1 before 4.1(2)E1(1l) on Nexus 4000 devices, NX-OS 5.x before 5.1(3)N1(1) on Nexus 5000 devices, NX-OS 5.2 before 5.2(3a) on Nexus 7000 devices, and CG-OS CG4 before CG4(2) on Connected 1000 Connected Grid Routers allows remote SMTP servers to execute arbitrary code via a crafted reply, aka Bug IDs CSCtk00695, CSCts56633, CSCts56632, CSCts56628, CSCug14405, and CSCuf61322.

The weakness was shared 05/21/2014 with Cisco as cisco-sa-20140521-nxos / CSCts56633 / CSCts56632 / CSCts56628 / CSCug14405 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2014-3261 since 05/07/2014. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/20/2021). The advisory points out:

Cisco NX-OS-Based products that support the Smart Call Home feature set are affected by a buffer overflow vulnerability. An unauthenticated, remote attacker who can obtain control of a configured SMTP server could trigger a buffer overflow condition. Successful exploitation could allow the attacker to execute arbitrary code with elevated privileges on the affected device. This vulnerability is due to a failure to properly sanitize input received from remote hosts while sending a Smart Call Home notification.

The vulnerability scanner Nessus provides a plugin with the ID 74241 (Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43032 (Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos)).

Upgrading eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93312), Tenable (74241), SecurityFocus (BID 67575†), SecurityTracker (ID 1030268†) and Vulnerability Center (SBV-44635†). Additional details are provided at tools.cisco.com. The entries VDB-13310, VDB-13308, VDB-13307 and VDB-69801 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 8.7

VulDB Base Score: 10.0
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74241
Nessus Name: Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: software.cisco.com

Timelineinfo

05/07/2014 🔍
05/21/2014 +14 days 🔍
05/21/2014 +0 days 🔍
05/21/2014 +0 days 🔍
05/21/2014 +0 days 🔍
05/21/2014 +0 days 🔍
05/22/2014 +1 days 🔍
05/25/2014 +3 days 🔍
05/26/2014 +1 days 🔍
06/20/2021 +2582 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20140521-nxos / CSCts56633 / CSCts56632 / CSCts56628 / CSCug14405
Organization: Cisco
Status: Confirmed

CVE: CVE-2014-3261 (🔍)
GCVE (CVE): GCVE-0-2014-3261
GCVE (VulDB): GCVE-100-13309

IAVM: 🔍

X-Force: 93312 - Cisco NX-OS Smart Call Home buffer overflow, High Risk
SecurityFocus: 67575 - Cisco Multiple NX-OS Products Smart Call Home Feature Buffer Overflow Vulnerability
SecurityTracker: 1030268 - Cisco NX-OS Multiple Bugs Let Remote Users Deny Service and Execute Arbitrary Code and Remote Authenticated Users Gain Elevated Privileges
Vulnerability Center: 44635 - [cisco-sa-20140521-nxos] Multiple Cisco Products Remote Host Privilege via a Crafted Reply - CVE-2014-3261, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/22/2014 22:53
Updated: 06/20/2021 10:03
Changes: 05/22/2014 22:53 (50), 05/29/2017 08:47 (35), 06/20/2021 10:03 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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