CVE-2020-16171

Published Sep 21, 2020

Last updated 4 years ago

Overview

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.
Source
cve@mitre.org
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
6.5
Impact score
2.5
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
6.4
Impact score
4.9
Exploitability score
10
Vector string
AV:N/AC:L/Au:N/C:P/I:P/A:N

Weaknesses

nvd@nist.gov
CWE-918

Social media

Hype score
Not currently trending

Configurations