Multiple cross-site scripting (XSS) vulnerabilities in the Help Contents web application (aka the Help Server) in Eclipse IDE before 3.6.2 allow remote attackers to inject arbitrary web script or HTML via the query string to (1) help/index.jsp or (2) help/advanced/content.jsp.

Impact xml files like ".project" are parsed vulnerable against all sorts of XXE attacks. The user just needs to open any evil project or update an open project with a vulnerable file (for example for review a foreign repository or patch).

Vulnerablility was found by static code analysis (SonarLint).

Example .project file: <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE price [ <!ENTITY xxe SYSTEM "http://127.0.0.1:49416/evil">]> <projectDescription> <name>p</name> <comment>&xxe;</comment> </projectDescription>

Patches Similar patches including junit test that shows the vulnerability have already applied to PDE (see https://github.com/eclipse-pde/eclipse.pde/pull/667). A solution to platform should be the same: just reject parsing any XML that contains any DOCTYPE.

Workarounds No known workaround. User can only avoid to get/open any foreign files with eclipse. Firewall rules against loss of data (but not against XML bomb).

References https://cwe.mitre.org/data/definitions/611.html https://rules.sonarsource.com/java/RSPEC-2755 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/8 (Report for multiple projects affected)

Multiple cross-site scripting (XSS) vulnerabilities in the Help Contents web application (aka the Help Server) in Eclipse IDE, possibly 3.3.2, allow remote attackers to inject arbitrary web script or HTML via (1) the searchWord parameter to help/advanced/searchView.jsp or (2) the workingSet parameter in an add action to help/advanced/workingSetManager.jsp, a different issue than CVE-2010-4647.