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CVE-2021-39150— A Server-Side Forgery Request vulnerability in XStream via PriorityQueue unmarshaling

Quick assessment

Affected
x-stream xstream
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 1.4.18之前版本存在代码问题漏洞，攻击者可利用该漏洞通过使用Java runtime 14 to 8操纵已处理的输入流，从不公开的内部资源请求数据

CVSS 8.5 · High EPSS 3.44% · P89

Affected Version Matrix 1

VendorProduct Version RangeStatus
x-stream xstream < 1.4.18 affected
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I. Basic Information for CVE-2021-39150

Vulnerability Information
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Vulnerability Title
A Server-Side Forgery Request vulnerability in XStream via PriorityQueue unmarshaling
Source: CVE Program / CVE List V5
Vulnerability Description
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream with a Java runtime version 14 to 8. 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](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.18.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
XStream 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
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 1.4.18之前版本存在代码问题漏洞，攻击者可利用该漏洞通过使用Java runtime 14 to 8操纵已处理的输入流，从不公开的内部资源请求数据
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

Vendor Product Affected Versions CPE Subscribe
x-stream xstream < 1.4.18 -

II. Public POCs for CVE-2021-39150

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III. Intelligence Information for CVE-2021-39150

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Vendor Advisories for CVE-2021-39150 (6)

Mailing List Discussions for CVE-2021-39150 (4)

Security Blog Posts for CVE-2021-39150 (1)

Same Patch Batch · x-stream · 2021-08-23 · 14 CVEs total

CVE-2021-39139 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39141 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39144 8.5 HIGH XStream is vulnerable to a Remote Command Execution attack
CVE-2021-39145 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39146 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39147 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39148 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39149 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39151 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39152 8.5 HIGH A Server-Side Forgery Request vulnerability in XStream via HashMap unmarshaling
CVE-2021-39153 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39154 8.5 HIGH XStream is vulnerable to an Arbitrary Code Execution attack
CVE-2021-39140 6.5 MEDIUM XStream can cause a Denial of Service

IV. Related Vulnerabilities

Same product: xstream
Same vendor: x-stream
Same weakness: CWE-502

V. Comments for CVE-2021-39150

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