Vulnerabilities > CVE-2011-2059 - Information Exposure vulnerability in Cisco IOS
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
The ipv6 component in Cisco IOS before 15.1(4)M1.3 allows remote attackers to conduct fingerprinting attacks and obtain potentially sensitive information about the presence of the IOS operating system via an ICMPv6 Echo Request packet containing a Hop-by-Hop (HBH) extension header (EH) with a 0x0c01050c value in the PadN option data, aka Bug ID CSCtq02219.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Subverting Environment Variable Values The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
- Footprinting An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
- Exploiting Trust in Client (aka Make the Client Invisible) An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
- Browser Fingerprinting An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
- Session Credential Falsification through Prediction This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
Seebug
| bulletinFamily | exploit |
| description | BUGTRAQ ID: 50379 CVE ID: CVE-2011-2059 Cisco的网际操作系统（IOS）是一个网际互连优化的复杂操作系统。数据流交互功能DLSw可以实现在IP网络上传输IBM SNA和网络BIOS流量。 Cisco IOS实现上存在信息泄露漏洞，通过包含有HBH扩展标头中PadN选项数据为0x0c01050c的ICMPv6 Echo请求报文，Cisco IOS中的IPv6组件允许远程攻击者执行指纹识别攻击并获取系统敏感信息。 Cisco IOS 15.x 厂商补丁： Cisco ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://www.cisco.com/warp/public/707/advisory.html |
| id | SSV:23150 |
| last seen | 2017-11-19 |
| modified | 2011-10-28 |
| published | 2011-10-28 |
| reporter | Root |
| title | Cisco IOS 指纹识别ICMPv6回应请求信息泄露漏洞 |
References
- http://blogs.cisco.com/security/1999tcp-redux-the-ipv6-flavor
- http://tools.cisco.com/security/center/viewIpsSignature.x?signatureId=36606&signatureSubId=0
- http://blogs.cisco.com/security/1999tcp-redux-the-ipv6-flavor
- http://tools.cisco.com/security/center/viewIpsSignature.x?signatureId=36606&signatureSubId=0