CVE-2021-21345— XStream 操作系统命令注入漏洞
一分钟漏洞结论
影响对象
x-stream xstream
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
XStream是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 1.4.16 之前版本存在操作系统命令注入漏洞，攻击者可利用该漏洞仅通过操作已处理的输入流来执行主机的命令。
公开利用映射 1
Nuclei · 1
CVE-2021-21345.yaml [template]
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application
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一、 漏洞 CVE-2021-21345 基础信息
漏洞信息
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Vulnerability Title
XStream is vulnerable to a Remote Command Execution attack
来源: CVE Program / CVE List V5
Vulnerability Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
来源: CVE Program / CVE List V5
Vulnerability Title
XStream 操作系统命令注入漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
XStream是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 1.4.16 之前版本存在操作系统命令注入漏洞，攻击者可利用该漏洞仅通过操作已处理的输入流来执行主机的命令。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2021-21345 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | XStream before 1.4.16 is susceptible to remote code execution. An attacker who has sufficient rights can execute host commands via manipulating the processed input stream, thereby making it possible to obtain sensitive information, modify data, and/or execute unauthorized administrative operations. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21345.yaml | POC详情 |
| 2 | None | https://github.com/shoucheng3/x-stream__xstream_CVE-2021-21345_1-4-15 | POC详情 |
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CVE-2021-21345 厂商安全公告 (7)
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https://www.oracle.com/security-alerts/cpujan2022.html x_refsource_MISC
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https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISC
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https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC
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https://www.oracle.com//security-alerts/cpujul2021.html x_refsource_MISC
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https://github.com/x-stream/xstream/security/advisories/GHSA-hwpc-8xqv-jvj4 x_refsource_CONFIRM
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https://security.netapp.com/advisory/ntap-20210430-0002/ x_refsource_CONFIRM
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CVE-2021-21345 邮件列表归档 (6)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/ vendor-advisory x_refsource_FEDORA
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https://lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0%40%3Cdev.jmeter.apache.org%3E mailing-list x_refsource_MLIST
CVE-2021-21345 安全博客文章 (2)
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http://x-stream.github.io/changes.html#1.4.16 x_refsource_MISC
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https://x-stream.github.io/CVE-2021-21345.html x_refsource_MISC
同批安全公告 · x-stream · 2021-03-22 · 共 11 条
| CVE-2021-21341 | 7.5 HIGH | XStream 代码问题漏洞 |
| CVE-2021-21346 | 6.1 MEDIUM | XStream 代码问题漏洞 |
| CVE-2021-21347 | 6.1 MEDIUM | XStream 代码问题漏洞 |
| CVE-2021-21349 | 6.1 MEDIUM | XStream 代码问题漏洞 |
| CVE-2021-21351 | 5.4 MEDIUM | XStream 代码问题漏洞 |
| CVE-2021-21342 | 5.3 MEDIUM | XStream 代码问题漏洞 |
| CVE-2021-21343 | 5.3 MEDIUM | XStream 安全漏洞 |
| CVE-2021-21344 | 5.3 MEDIUM | XStream 代码问题漏洞 |
| CVE-2021-21348 | 5.3 MEDIUM | XStream 资源管理错误漏洞 |
| CVE-2021-21350 | 5.3 MEDIUM | XStream 代码问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21345
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