PT-2013-59: XML External Entities Injection in Huawei M2000 Vulnerable platformHuawei M2000Link: http://www.huawei.com/Severity levelSeverity level: Medium Impact: Internal Network Resources and File System Access, Denial of Service Access Vector: Remote CVSS v2: Base Score: 5.8 Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:P)CVE: not assignedPlatform descriptionHuawei M2000 is a centralized OSS (Operating Support Systems) solution designated to improve system use and mobile network service.Vulnerability descriptionThe specialists of the Positive Research center have detected an XML External Entities Injection vulnerability in Huawei M2000.An XML document may contain a Document Type Definition that, among other features, allows the definition of external entities. A malicious user may perform attacks aimed at reading arbitrary files, creating a denial of service condition, scanning the demilitarized zone, etc.How to fixCustomers can contact the Huawei Technical Assistance Center (TAC) to request upgradesAdvisory status 29.05.2013 - Vendor gets vulnerability details 31.07.2013 - Vendor releases fixed version and details 06.02.2014 - Public disclosureCreditsThe vulnerability was detected by Timur Yunusov, Alexey Osipov, Gleb Gritsai, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2013-59 Reports on the vulnerabilities previously discovered by Positive Research:http://www.ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/