Vulnerabilities > CVE-2011-5227 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Enterasys Netsight

047910
CVSS 10.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
enterasys
CWE-119
critical
exploit available
metasploit
NVD
Published: 2012-10-25
Updated: 2017-08-29

Summary

Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management Suite (NMS) before 4.1.0.80 allows remote attackers to execute arbitrary code via a long PRIO field in a message to UDP port 514.

Vulnerable Configurations

Part Description Count
Application
Enterasys
1
Hardware
Enterasys
1

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.

Exploit-Db

descriptionEnterasys NetSight nssyslogd.exe Buffer Overflow. CVE-2011-5227. Remote exploit for windows platform
idEDB-ID:23887
last seen2016-02-02
modified2013-01-04
published2013-01-04
reportermetasploit
sourcehttps://www.exploit-db.com/download/23887/
titleEnterasys NetSight nssyslogd.exe Buffer Overflow

Metasploit

descriptionThis module exploits a stack buffer overflow in Enterasys NetSight. The vulnerability exists in the Syslog service (nssylogd.exe) when parsing a specially crafted PRIO from a syslog message. The module has been tested successfully on Enterasys NetSight 4.0.1.34 over Windows XP SP3 and Windows 2003 SP2.
idMSF:EXPLOIT/WINDOWS/MISC/ENTERASYS_NETSIGHT_SYSLOG_BOF
last seen2020-06-01
modified2017-07-24
published2013-01-03
referenceshttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-5227
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/windows/misc/enterasys_netsight_syslog_bof.rb
titleEnterasys NetSight nssyslogd.exe Buffer Overflow

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/119249/enterasys_netsight_syslog_bof.rb.txt
idPACKETSTORM:119249
last seen2016-12-05
published2013-01-04
reporterJeremy Brown
sourcehttps://packetstormsecurity.com/files/119249/Enterasys-NetSight-nssyslogd.exe-Buffer-Overflow.html
titleEnterasys NetSight nssyslogd.exe Buffer Overflow

References