Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2020-26217— Remote Code Execution in XStream

Quick assessment

Affected
x-stream xstream
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 1.4.14之前版本存在操作系统命令注入漏洞，该漏洞源于容易受到远程代码执行的攻击。攻击者可利用该漏洞仅通过操纵已处理的输入流来运行任意shell命令。只有依赖黑名单的用户才会受到影响。

CVSS 8.0 · High EPSS 85.00% · P100

Public Exploits 1

Nuclei · 1 CVE-2020-26217.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
x-stream xstream < 1.4.14 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-26217

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Remote Code Execution in XStream
Source: CVE Program / CVE List V5
Vulnerability Description
XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
XStream 操作系统命令注入漏洞
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 1.4.14之前版本存在操作系统命令注入漏洞，该漏洞源于容易受到远程代码执行的攻击。攻击者可利用该漏洞仅通过操纵已处理的输入流来运行任意shell命令。只有依赖黑名单的用户才会受到影响。
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)

Shenlong Deep Dive — AI Deep Analysis

10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.

Read summary Full analysis (login)

Affected Products

Vendor Product Affected Versions CPE Subscribe
x-stream xstream < 1.4.14 -

II. Public POCs for CVE-2020-26217

# POC Description Source Link Shenlong Link
1 CVE-2020-26217 XStream RCE POC https://github.com/novysodope/CVE-2020-26217-XStream-RCE-POC POC Details
2 CVE-2020-26217 && XStream RCE https://github.com/Al1ex/CVE-2020-26217 POC Details
3 xstream with CVE-2020-26217 https://github.com/epicosy/XStream-1 POC Details
4 XStream before 1.4.14 is susceptible to remote code execution. An attacker can run arbitrary shell commands 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. Users who rely on blocklists are affected. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-26217.yaml POC Details
5 None https://github.com/cuijiung/xstream-CVE-2020-26217 POC Details
6 None https://github.com/shoucheng3/x-stream__xstream_CVE-2020-26217_1-4-14-java7 POC Details
7 None https://github.com/shoucheng3/x-stream__xstream_CVE-2020-26217_1-4-14-java77 POC Details
8 CVE-2020-26217 XStream反序列化的poc https://github.com/Kairo-one/CVE-2020-26217-XStream POC Details
9 None https://github.com/andikahilmy/CVE-2020-26217-xstream-vulnerable POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-26217

请登录查看更多情报信息。

Patches & Fixes for CVE-2020-26217 (1)

Vendor Advisories for CVE-2020-26217 (8)

Mailing List Discussions for CVE-2020-26217 (5)

Security Blog Posts for CVE-2020-26217 (1)

IV. Related Vulnerabilities

Same product: xstream
Same vendor: x-stream
Same weakness: CWE-78

V. Comments for CVE-2020-26217

No comments yet

Leave a comment