VinChin Backup & Recovery is an all-in-one backup solution for virtual infrastructures supporting VMWare, KVM, Xen Server, Hyper-V, OpenStack and more. The product also supports AWS, Azure and other cloud providers as backup storage. VinChin has failed to acknowledge the various requests over a month period, we are thus disclosing the following vulnerabilities: CVE-2023-45499 - VinChin VMWare Backup 5.0 to 7.0 During our research we discovered an HTTP API exposed by VinChin Backup. This API can be accessed using hard-coded credentials. CVE-2023-45498 - VinChin VMWare Backup 5.0 to 7.0 While exploring the various functionalities exposed by the API a particular endpoint was found vulnerable to improper input sanitization. A specially crafted payload results in remote code execution allowing the attacker to execute code with the permissions of the web server. Timeline: 2023-09-22: LeakIX makes initial contact 2023-09-25: VinChin request details 2023-09-25: LeakIX request Safe harbour 2023-09-26: No reply, LeakIX requests update 2023-09-27: No reply, LeakIX sends PoC 2023-09-29: No reply, LeakIX requests feedback 2023-10-05: No reply, LeakIX requests feedback 2023-10-10: No reply, LeakIX requests feedback from alternative email 2023-10-11: No reply, LeakIX requests feedback from another alternative email 2023-10-16: No reply, CVE reserved and vendor notified 2023-10-18: No reply, LeakIX sent 7 day disclosure warning 2023-10-24: LeakIX sends early warning to providers hosting VinChin on their network. 2023-10-26: No reply, Publishing this advisory
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