جزئیات آسیب‌پذیری

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the Microsoft Teams channel handler that allows remote attackers to exfiltrate Bot Framework bearer tokens by supplying a forged activity with an attacker-controlled serviceUrl value. Attackers can poison the stored conversation reference by sending a crafted inbound activity to the Teams webhook, causing subsequent bot replies to transmit token-bearing Authorization header requests to an attacker-controlled host.

• https://github.com/HKUDS/nanobot/releases/tag/v0.2.1 release-notes
• https://github.com/HKUDS/nanobot/pull/4047 issue-trackingpatch
• https://github.com/HKUDS/nanobot/commit/232df45126bcf0f8fccd123d73714f202c8e8612 patch
• https://www.vulncheck.com/advisories/nanobot-ssrf-via-microsoft-teams-channel-serviceurl-poisoning third-party-advisory