Vulnerability Name:

CVE-2021-29084 (CCN-202454)

Assigned:2021-05-25
Published:2021-05-25
Updated:2021-06-29
Summary:Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in Security Advisor report management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to read arbitrary files via unspecified vectors.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-74
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-29084

Source: XF
Type: UNKNOWN
synology-cve202129084-crlf-injection(202454)

Source: CCN
Type: Synology Security Advisory
Synology-SA-20:26 DSM

Source: CONFIRM
Type: Vendor Advisory
https://www.synology.com/security/advisory/Synology_SA_20_26

Source: CCN
Type: ZDI-21-607
Synology DiskStation Manager webapi CRLF Injection Information Disclosure Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:synology:diskstation_manager:*:*:*:*:*:*:*:* (Version >= 6.2 and < 6.2.3-25426-3)
  • OR cpe:/o:synology:diskstation_manager_unified_controller:*:*:*:*:*:*:*:* (Version < 3.1-23033)

    • Configuration CCN 1:
  • cpe:/a:synology:diskstation_manager:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    synology diskstation manager *
    synology diskstation manager unified controller *
    synology diskstation manager -