Microsoft Adds On-premises Exchange, SharePoint to Bug Bounty Program
Microsoft has announced that Exchange, SharePoint, and Skype for Business on-premises are now part of the Applications and On-Premises Servers Bounty Program starting today.
With the expansion of this bug bounty program, security researchers who find and report vulnerabilities affecting on-premises servers are eligible for awards ranging from $500 up to $26,000.
“The Microsoft Applications and On-Premises Servers Bounty Program invites researchers across the globe to identify vulnerabilities in specific Microsoft applications and on-premise servers and share them with our team,” the company says.
“Higher awards are possible, at Microsoft’s sole discretion, based on the severity and impact of the vulnerability and the quality of the submission.”
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The Microsoft Security Response Center (MSRC) team also said that security researchers could be awarded higher rewards based on severity multipliers stemming from reported vulnerabilities’ impact.
“The bounty also includes high-impact scenarios offering the highest awards to research in areas with the highest potential impact on customer security,” the MSRC team added.
“The goal of the bounty program is to uncover significant technical vulnerabilities that have a direct and demonstrable impact on the security of our customers using the latest version of the application,” Microsoft further explained.
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| Security Impact | Severity Multiplier |
| EXCHANGE ONLY: Server-Side Request Forgery allows an attacker to make server-side HTTP requests to arbitrary URLs. | 20% |
| SHAREPOINT ONLY: Authenticated Server-Side Request Forgery allows an attacker to make authenticated server-side HTTP requests to arbitrary URL | 20% |
| Insecure deserialization of user-controllable data, leading to remote code execution on server | 30% |
| Arbitrary file write of user-controlled data on user-controlled location on the server. | 20% |
| Authentication bypass allows for unauthenticated exploitation which results in mass exploitation of vulnerabilities | 20% |
| Vulnerabilities within Exchange Emergency Mitigation Service (EEMS) | 15% |
More information about award amounts, in-scope apps and on-premise servers is available on the Applications and On-Premises Servers Bounty Program page.
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