Cisco Small Business Series Switch Web-based Management Interface session expiration

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Cisco Small Business Series Switch. This issue affects some unknown processing of the component Web-based Management Interface. The manipulation leads to session expiration. This vulnerability is uniquely identified as CVE-2021-34739. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.
Details
A vulnerability was found in Cisco Small Business Series Switch (affected version unknown). It has been rated as critical. This issue affects an unknown functionality of the component Web-based Management Interface. The manipulation with an unknown input leads to a session expiration vulnerability. Using CWE to declare the problem leads to CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." Impacted is confidentiality, integrity, and availability.
The weakness was disclosed 11/04/2021 as cisco-sa-smb-switches-tokens-UzwpR4e5. It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2021-34739 since 06/15/2021. The technical details are unknown and an exploit is not publicly available.
Upgrading eliminates this vulnerability.
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Product
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.8VulDB Meta Temp Score: 6.7
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 8.1
CNA Vector (Cisco Systems, Inc.): 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Session expirationCWE: CWE-613
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
06/15/2021 🔍11/04/2021 🔍
11/04/2021 🔍
11/09/2021 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-smb-switches-tokens-UzwpR4e5
Status: Confirmed
CVE: CVE-2021-34739 (🔍)
GCVE (CVE): GCVE-0-2021-34739
GCVE (VulDB): GCVE-100-186047
Entry
Created: 11/04/2021 20:01Updated: 11/09/2021 14:57
Changes: 11/04/2021 20:01 (48), 11/09/2021 14:57 (1)
Complete: 🔍
Cache ID: 216::103
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