Vulnerability Name:

CVE-2020-27656 (CCN-190891)

Assigned:2020-10-29
Published:2020-10-29
Updated:2020-11-03
Summary:Cleartext transmission of sensitive information vulnerability in DDNS in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to eavesdrop authentication information of DNSExit via unspecified vectors.
CVSS v3 Severity:3.7 Low (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.2 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.1 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-319
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-27656

Source: XF
Type: UNKNOWN
synology-cve202027656-info-disc(190891)

Source: CCN
Type: Synology-SA-20:18
DSM

Source: CONFIRM
Type: Vendor Advisory
https://www.synology.com/security/advisory/Synology_SA_20_18

Source: MISC
Type: Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1071

Vulnerable Configuration:Configuration 1:
  • cpe:/a:synology:diskstation_manager:*:*:*:*:*:*:*:* (Version >= 6.2 and < 6.2.3-25426-2)

    • * Denotes that component is vulnerable
    BACK
    synology diskstation manager *