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SynologyCVE-2021-26565

HistoryFeb 26, 2021 - 10:15 p.m.

CVE-2021-26565

2021-02-2622:15:20

CWE-319

synology

web.nvd.nist.gov

cve-2021-26565

cleartext transmission

synology diskstation manager

dsm

vulnerability

http session

man-in-the-middle

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

8.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

AI Score

6.9

Confidence

High

EPSS

0.001

Percentile

47.2%

JSON

Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to obtain sensitive information via an HTTP session.

Affected configurations

Nvd

Node

synologydiskstation_managerRange<6.2.3-25426-3

Node

synologyvs960hdMatch-

AND

synologyvs960hd_firmwareMatch-

Node

synologyskynasMatch-

AND

synologyskynas_firmwareMatch-

Node

synologyuc3200Match-

AND

synologydiskstation_manager_unified_controllerMatch3.0

VendorProductVersionCPE
synologydiskstation_manager*cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*
synologyvs960hd-cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*
synologyvs960hd_firmware-cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*
synologyskynas-cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:*
synologyskynas_firmware-cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:*
synologyuc3200-cpe:2.3:h:synology:uc3200:-:*:*:*:*:*:*:*
synologydiskstation_manager_unified_controller3.0cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
synology	diskstation_manager	*	cpe:2.3:a:synology:diskstation_manager::::::::
synology	vs960hd	-	cpe:2.3:h:synology:vs960hd:-:::::::*
synology	vs960hd_firmware	-	cpe:2.3:o:synology:vs960hd_firmware:-:::::::*
synology	skynas	-	cpe:2.3:h:synology:skynas:-:::::::*
synology	skynas_firmware	-	cpe:2.3:o:synology:skynas_firmware:-:::::::*
synology	uc3200	-	cpe:2.3:h:synology:uc3200:-:::::::*
synology	diskstation_manager_unified_controller	3.0	cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:::::::*

CNA Affected

[
  {
    "product": "Synology DiskStation Manager (DSM)",
    "vendor": "Synology",
    "versions": [
      {
        "lessThan": "6.2.3-25426-3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.synology.com/security/advisory/Synology_SA_20_26

www.talosintelligence.com/vulnerability_reports/TALOS-2020-1160

Social References

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

8.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

AI Score

6.9

Confidence

High

EPSS

0.001

Percentile

47.2%

JSON

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