CVE-2021-31805— Forced OGNL evaluation, when evaluated on raw not validated user input in tag attributes, may lead to RCE.
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I. Basic Information for CVE-2021-31805
Vulnerability Information
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Vulnerability Title
Forced OGNL evaluation, when evaluated on raw not validated user input in tag attributes, may lead to RCE.
Source: NVD (National Vulnerability Database)
Vulnerability Description
The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
表达式语言语句中使用的特殊元素转义处理不恰当(表达式语言注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Struts 2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Struts 2是美国阿帕奇（Apache）基金会的一个用于开发Java EE网络应用程序的开放源代码网页应用程序架构。 Apache Struts 2.0.0版本至2.5.29版本存在安全漏洞，该漏洞源于对不受信任的用户输入在标签属性中使用强制 OGNL 评估。攻击者可利用该漏洞进行远程代码执行并导致安全性降低。
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 | 2.0.0 to 2.5.29 | - |
II. Public POCs for CVE-2021-31805
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | 远程代码执行S2-062 CVE-2021-31805验证POC | https://github.com/pyroxenites/s2-062 | POC Details |
| 2 | S2-062 (CVE-2021-31805) / S2-061 / S2-059 RCE | https://github.com/Wrin9/CVE-2021-31805 | POC Details |
| 3 | Apache Struts2 S2-062远程代码执行漏洞(CVE-2021-31805) | 反弹Shell | https://github.com/Axx8/Struts2_S2-062_CVE-2021-31805 | POC Details |
| 4 | Apache Struts2 S2-062远程代码执行漏洞(CVE-2021-31805) 支持批量扫描漏洞及漏洞利用 | https://github.com/jax7sec/S2-062 | POC Details |
| 5 | PoC for CVE-2021-31805 (Apache Struts2) | https://github.com/aeyesec/CVE-2021-31805 | POC Details |
| 6 | Apache Struts2 S2-062(CVE-2021-31805)远程代码执行批量检测（无利用） | https://github.com/fleabane1/CVE-2021-31805-POC | POC Details |
| 7 | S2-061/S2-062 Struts2 远程命令执行漏洞 POC&EXP | https://github.com/z92g/CVE-2021-31805 | POC Details |
| 8 | Vulnerable environment of CVE-2021-31805 (S2-062) for testing | https://github.com/nth347/CVE-2021-31805 | POC Details |
| 9 | Apache Struts2 S2-062 is vulnerable to remote code execution. The fix issued for CVE-2020-17530 (S2-061) was incomplete, meaning some of the tag's attributes could still perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-31805.yaml | POC Details |
| 10 | 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%20S2-062%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-2021-31805.md | POC Details |
| 11 | Apache Struts2 S2-062远程代码执行漏洞(CVE-2021-31805) | 反弹Shell | https://github.com/SecNN/Struts2_S2-062_CVE-2021-31805 | POC Details |
| 12 | Apache Struts2 S2-062(CVE-2021-31805)远程代码执行批量检测（无利用） | https://github.com/JordanANDJohn/CVE-2021-31805-POC | POC Details |
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-31805
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- https://cwiki.apache.org/confluence/display/WW/S2-062x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220420-0001/x_refsource_CONFIRM
- https://www.oracle.com/security-alerts/cpujul2022.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-31805
Same Patch Batch · Apache Software Foundation · 2022-04-12 · 3 CVEs total
| CVE-2021-28544 | Apache Subversion SVN authz protected copyfrom paths regression | |
| CVE-2022-24070 | Apache Subversion mod_dav_svn is vulnerable to memory corruption |
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V. Comments for CVE-2021-31805
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