CVE-2021-26561
CVSS V2 Medium 6.8
CVSS V3 High 8.1
Description
Stack-based buffer overflow vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary code via syno_finder_site HTTP header.
Overview
- CVE ID
- CVE-2021-26561
- Assigner
- security@synology.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-02-26T22:15:19
- Last Modified Date
- 2022-04-26T13:16:30
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* | 1 | OR | 6.2.3-25426-3 | |
| AND | ||||
| cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:synology:uc3200:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.synology.com/security/advisory/Synology_SA_20_26 | Vendor Advisory |
| https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1159 | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-26561 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26561 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:26:37 | Added to TrackCVE | |||
| 2022-12-05 22:54:30 | 2021-02-26T22:15Z | 2021-02-26T22:15:19 | CVE Published Date | updated |
| 2022-12-05 22:54:30 | 2022-04-26T13:16:30 | CVE Modified Date | updated | |
| 2022-12-05 22:54:30 | Analyzed | Vulnerability Status | updated |