Synology DiskStation Manager up to 6.2.3-25423 HTTP Session channel accessible
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as critical has been discovered in Synology DiskStation Manager. This vulnerability affects unknown code of the component HTTP Session Handler. The manipulation results in channel accessible. This vulnerability is cataloged as CVE-2021-26560. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.
Details
A vulnerability classified as problematic has been found in Synology DiskStation Manager (Network Attached Storage Software). Affected is an unknown functionality of the component HTTP Session Handler. The manipulation with an unknown input leads to a channel accessible vulnerability. CWE is classifying the issue as CWE-300. The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. This is going to have an impact on confidentiality.
The weakness was shared 02/27/2021 as SA_20_26. The advisory is available at synology.com. This vulnerability is traded as CVE-2021-26560. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1557 by the MITRE ATT&CK project.
Upgrading to version 6.2.3-25426-3 eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
- 4.0-2257
- 4.0-2259
- 4.1-2851
- 4.2-3236
- 4.2-3243
- 4.3-3776
- 4.3-3810
- 4.3-3810 update 1
- 5.0
- 5.0-4458
- 5.0-4458 Update 1
- 5.2-5967-5
- 5.2-5967-6
- 6.0.3
- 6.0.3-8754-3
- 6.0.3-8754-6
- 6.1.3-15152
- 6.1.4
- 6.1.4-15217
- 6.1.4-15217-3
- 6.1.6-15266
- 6.2-23739
- 6.2-23739-1
- 6.2-23739-2
- 6.2.1-23824
- 6.2.3-2542
- 6.2.3-25423
License
Website
- Vendor: https://www.synology.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.7VulDB Meta Temp Score: 6.7
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.4
NVD Vector: 🔍
CNA Base Score: 9.0
CNA Vector (Synology Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Channel accessibleCWE: CWE-300
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: DiskStation Manager 6.2.3-25426-3
Timeline
02/02/2021 🔍02/27/2021 🔍
02/27/2021 🔍
01/15/2025 🔍
Sources
Vendor: synology.comAdvisory: SA_20_26
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-26560 (🔍)
GCVE (CVE): GCVE-0-2021-26560
GCVE (VulDB): GCVE-100-170514
Entry
Created: 02/27/2021 08:15Updated: 01/15/2025 07:16
Changes: 02/27/2021 08:15 (39), 03/05/2021 20:37 (6), 03/05/2021 20:39 (1), 03/14/2021 06:58 (18), 01/15/2025 07:16 (31)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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