Vulnerability Name:

CVE-2021-26563 (CCN-197529)

Assigned:2020-11-26
Published:2020-11-26
Updated:2022-04-26
Summary:Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.
CVSS v3 Severity:6.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-863
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-26563

Source: XF
Type: UNKNOWN
synology-cve2021226563-info-disc(197529)

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

Source: CONFIRM
Type: Vendor Advisory
https://www.synology.com/security/advisory/Synology_SA_21_03

Source: MISC
Type: Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158

Vulnerable Configuration:Configuration 1:
  • cpe:/a:synology:diskstation_manager:*:*:*:*:*:*:*:* (Version < 6.2.4-25553)

  • Configuration 2:
  • cpe:/o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:synology:vs960hd:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:synology:skynas_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:synology:skynas:-:*:*:*:*:*:*:*

  • Configuration 4:
  • cpe:/o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*
  • AND
  • cpe:/h:synology:uc3200:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    synology diskstation manager *
    synology vs960hd firmware -
    synology vs960hd -
    synology skynas firmware -
    synology skynas -
    synology diskstation manager unified controller 3.0
    synology uc3200 -