CVE-2020-16171

Medium

Description

An issue was discovered in Acronis Cyber Backup before 12.5 Build 16342. Some API endpoints on port 9877 under /api/ams/ accept an additional custom Shard header. The value of this header is afterwards used in a separate web request issued by the application itself. This can be abused to conduct SSRF attacks against otherwise unreachable Acronis services that are bound to localhost such as the NotificationService on 127.0.0.1:30572.

SeverityMedium
CVSS6.5
Exploit probability—
ProductAcronis Cyber Backup
PublishedSep 21, 2020
First seenSep 21, 2020

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
acronis cyber_backupv ≤ 12.5, 12.5—

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CVE-2020-16171 · Acronis Cyber Backup · Dark Radar