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I. Basic Information for CVE-2021-29505
Vulnerability Information

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Vulnerability Title
XStream is vulnerable to a Remote Command Execution attack
Source: NVD (National Vulnerability Database)
Vulnerability Description
XStream is software for serializing Java objects to XML and back again. A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types is affected. The vulnerability is patched in version 1.4.17.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
XStream 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XStream是XStream(Xstream)团队的一个轻量级的、简单易用的开源Java类库,它主要用于将对象序列化成XML(JSON)或反序列化为对象。 XStream存在代码问题漏洞,该漏洞允许远程攻击者有足够的权限仅通过操纵处理后的输入流来执行主机的命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
x-streamxstream < 1.4.17 -
II. Public POCs for CVE-2021-29505
#POC DescriptionSource LinkShenlong Link
1对CVE-2021-29505进行复现,并分析学了下Xstream反序列化过程https://github.com/MyBlackManba/CVE-2021-29505POC Details
2XStream before 1.4.17 is susceptible to remote code execution. An attacker can execute commands of the host by manipulating the processed input stream, thereby making it possible to obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-29505.yamlPOC Details
3Nonehttps://github.com/Threekiii/Awesome-POC/blob/master/%E5%BC%80%E5%8F%91%E6%A1%86%E6%9E%B6%E6%BC%8F%E6%B4%9E/XStream%20%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E5%91%BD%E4%BB%A4%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E%20CVE-2021-29505.mdPOC Details
4https://github.com/vulhub/vulhub/blob/master/xstream/CVE-2021-29505/README.mdPOC Details
5Nonehttps://github.com/cuijiung/xstream-CVE-2021-29505POC Details
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III. Intelligence Information for CVE-2021-29505
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