Vulnerabilities > CVE-2014-3261 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco products
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
| NASL family | CISCO |
| NASL id | CISCO-SA-20140521-NXOS.NASL |
| description | According to its self-reported version, the remote NX-OS device is reportedly affected by one or more of the following vulnerabilities : - A privilege escalation flaw exists on systems with multiple virtual device contexts (VDCs) and local authentication configured. This could allow a remote, authenticated attacker to gain the privileges of an administrator in another VDC. Affects Nexus 7000 series devices. (CVE-2013-1191) - A privilege escalation flaw exists on systems with multiple virtual device contexts (VDCs) and local authentication configured. This could allow a remote, authenticated attacker to gain the privileges of an administrator in another VDC. Affects Nexus 7000 series devices. (CVE-2014-2200). - A buffer overflow flaw exists with the Smart Call Home feature. A remote attacker, with control of a configured SMTP server, could execute arbitrary code with elevated privileges. (CVE-2014-3261) - A denial of service flaw exists with the Message Transfer Service (MTS) due to a NULL pointer dereference. This could allow a remote attacker to trigger a denial of service. Note that Cisco has investigated the issue, and has found that no official releases are affected. Only pre-release versions of NX-OS 6.0 are affected. (CVE-2014-2201) |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 74241 |
| published | 2014-05-30 |
| reporter | This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/74241 |
| title | Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos) |
| code | |