Synology Cloud Station Drive up to 4.2.5 shfolder.dll untrusted search path
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability has been found in Synology Cloud Station Drive up to 4.2.5 (Cloud Software) and classified as problematic. Affected by this vulnerability is an unknown function in the library shfolder.dll. The manipulation with an unknown input leads to a untrusted search path vulnerability. The CWE definition for the vulnerability is CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Multiple untrusted search path vulnerabilities in installer in Synology Cloud Station Drive before 4.2.5-4396 on Windows allows local attackers to execute arbitrary code and conduct DLL hijacking attack via a Trojan horse (1) shfolder.dll, (2) ntmarta.dll, (3) secur32.dll or (4) dwmapi.dll file in the current working directory.
The bug was discovered 08/30/2017. The weakness was published 08/31/2017 (Website). It is possible to read the advisory at synology.com. This vulnerability is known as CVE-2017-11158 since 07/10/2017. Attacking locally is a requirement. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.
The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.
Upgrading to version 4.2.5-4396 eliminates this vulnerability.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: Untrusted search pathCWE: CWE-426
ATT&CK: T1574
Local: Yes
Remote: No
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: Cloud Station Drive 4.2.5-4396
Timeline
07/10/2017 🔍08/30/2017 🔍
08/31/2017 🔍
08/31/2017 🔍
08/31/2017 🔍
12/27/2022 🔍
Sources
Vendor: synology.comAdvisory: SA_17_51
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-11158 (🔍)
Entry
Created: 08/31/2017 22:47Updated: 12/27/2022 11:46
Changes: 08/31/2017 22:47 (54), 11/12/2019 11:16 (8), 12/27/2022 11:46 (4)
Complete: 🔍
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