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CVE-2018-11776

Quick assessment

Affected
Apache Software Foundation Apache Struts
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Struts是美国阿帕奇（Apache）软件基金会负责维护的一个开源项目，是一套用于创建企业级Java Web应用的开源MVC框架，主要提供两个版本框架产品，Struts 1和Struts 2。Apache Struts 2是Apache Struts的下一代产品，是在Struts 1和WebWork的技术基础上进行了合并的全新Struts 2框架，其体系结构与Struts 1差别较大。 Apache Struts 2.3版本至2.3.34版本和2.5版本至2.5.16版本中存在输入验证漏洞

AI Predicted 9.8 Difficulty: Easy KEV EPSS 99.99% · P100

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2018-11776

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Struts 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Struts是美国阿帕奇（Apache）软件基金会负责维护的一个开源项目，是一套用于创建企业级Java Web应用的开源MVC框架，主要提供两个版本框架产品，Struts 1和Struts 2。Apache Struts 2是Apache Struts的下一代产品，是在Struts 1和WebWork的技术基础上进行了合并的全新Struts 2框架，其体系结构与Struts 1差别较大。 Apache Struts 2.3版本至2.3.34版本和2.5版本至2.5.16版本中存在输入验证漏洞
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Struts 2.3 to 2.3.34 -

II. Public POCs for CVE-2018-11776

# POC Description Source Link Shenlong Link
1 Creating a vulnerable environment and the PoC https://github.com/xfox64x/CVE-2018-11776 POC Details
2 CVE-2018-11776(S2-057) EXPLOIT CODE https://github.com/jiguangsdf/CVE-2018-11776 POC Details
3 Working Python test and PoC for CVE-2018-11776, includes Docker lab https://github.com/hook-s3c/CVE-2018-11776-Python-PoC POC Details
4 An exploit for Apache Struts CVE-2018-11776 https://github.com/mazen160/struts-pwn_CVE-2018-11776 POC Details
5 Vulnerable docker container for CVE-2018-11776 https://github.com/bhdresh/CVE-2018-11776 POC Details
6 Environment for CVE-2018-11776 / S2-057 (Apache Struts 2) https://github.com/knqyf263/CVE-2018-11776 POC Details
7 Proof of Concept for CVE-2018-11776 https://github.com/Ekultek/Strutter POC Details
8 None https://github.com/tuxotron/cve-2018-11776-docker POC Details
9 A simple exploit for Apache Struts RCE S2-057 (CVE-2018-11776) https://github.com/brianwrf/S2-057-CVE-2018-11776 POC Details
10 This tool takes advantage of CVE-2018-11776 and Shodan to perform mass exploitation of verified and vulnerable Apache Struts servers. https://github.com/649/Apache-Struts-Shodan-Exploit POC Details
11 None https://github.com/jezzus/CVE-2018-11776-Python-PoC POC Details
12 cve-2018-11776 https://github.com/cved-sources/cve-2018-11776 POC Details
13 Spins up an isolated test environment for experimentation with Apache Struts vulnerability CVE-2018-11776. https://github.com/OzNetNerd/apche-struts-vuln-demo-cve-2018-11776 POC Details
14 Investigation of CVE-2018-11776 vulnerability that allows attackers to remotely execute code and gain control over Apache Struts-based applications. https://github.com/cucadili/CVE-2018-11776 POC Details
15 Critical Remote Code Execution Vulnerability (CVE-2018-11776) Found in Apache Struts. https://github.com/ArunBhandarii/Apache-Struts-0Day-Exploit POC Details
16 None https://github.com/freshdemo/ApacheStruts-CVE-2018-11776 POC Details
17 None https://github.com/sonpt-afk/CVE-2018-11776-FIS POC Details
18 Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible remote code execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn''t have value and action set and in same time, its upper package have no or wildcard namespace. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2018/CVE-2018-11776.yaml POC Details
19 None https://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Apache%20Struts2%20S2-057%20%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E%20CVE-2018-11776.md POC Details
20 Critical Remote Code Execution Vulnerability (CVE-2018-11776) Found in Apache Struts. https://github.com/arlyone/Apache-Struts-0Day-Exploit POC Details
21 PoC Script for the CVE-2018-11776 vuln https://github.com/m4sk0ff/CVE-2018-11776 POC Details
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III. Intelligence Information for CVE-2018-11776

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Vendor Advisories for CVE-2018-11776 (9)

Exploits & Public PoCs for CVE-2018-11776 (4)

Mailing List Discussions for CVE-2018-11776 (1)

Security Blog Posts for CVE-2018-11776 (1)

Other References for CVE-2018-11776 (4)

IV. Related Vulnerabilities

Same product: Apache Struts
Same vendor: Apache Software Foundation

V. Comments for CVE-2018-11776

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