D-Link DSR-500N up to 1.02 SSH/Telnet /etc/passwd hard-coded credentials
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.2 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in D-Link DSR-500N up to 1.02 (Router Operating System). Affected by this issue is an unknown part of the file /etc/passwd of the component SSH/Telnet. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality, integrity, and availability.
The weakness was disclosed 08/24/2021 as SAP10235. The advisory is shared for download at nussko.com. This vulnerability is handled as CVE-2021-39615. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/24/2021). The MITRE ATT&CK project declares the attack technique as T1110.001.
Addressing this vulnerability is possible by firewalling .
Product
Type
Vendor
Name
Version
License
Support
- end of life
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.2
VulDB Base Score: 6.3
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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: 🔍
Exploiting
Class: Hard-coded credentialsCWE: CWE-798 / CWE-259 / CWE-255
ATT&CK: T1110.001
Local: No
Remote: Partially
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: FirewallStatus: 🔍
0-Day Time: 🔍
Timeline
08/23/2021 🔍08/24/2021 🔍
08/24/2021 🔍
08/26/2021 🔍
Sources
Vendor: dlink.comAdvisory: SAP10235
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-39615 (🔍)
Entry
Created: 08/24/2021 07:41Updated: 08/26/2021 12:54
Changes: 08/24/2021 07:41 (41), 08/26/2021 12:54 (2)
Complete: 🔍
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