KDE Discover up to 5.18.6/5.21.2 URL KNSResource.cpp privilege escalation

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in KDE Discover up to 5.18.6/5.21.2. This vulnerability affects unknown code of the file libdiscover/backends/KNSBackend/KNSResource.cpp of the component URL Handler. The manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2021-28117. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.
Details
A vulnerability, which was classified as critical, has been found in KDE Discover up to 5.18.6/5.21.2. This issue affects an unknown functionality of the file libdiscover/backends/KNSBackend/KNSResource.cpp of the component URL Handler. The impact remains unknown.
The weakness was published 03/21/2021. It is possible to read the advisory at kde.org. The identification of this vulnerability is CVE-2021-28117. Technical details of the vulnerability are known, but there is no available exploit.
Upgrading to version 5.18.7 or 5.21.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at invent.kde.org. The best possible mitigation is suggested to be upgrading to the latest version.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Vendor
Name
Version
License
Website
- Vendor: https://kde.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.1VulDB Meta Temp Score: 7.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CNA Base Score: 7.5
CNA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Privilege escalationCWE: Unknown
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: Discover 5.18.7/5.21.3
Patch: invent.kde.org
Timeline
03/09/2021 🔍03/21/2021 🔍
03/21/2021 🔍
10/16/2024 🔍
Sources
Vendor: kde.orgAdvisory: kde.org
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-28117 (🔍)
GCVE (CVE): GCVE-0-2021-28117
GCVE (VulDB): GCVE-100-171515
Entry
Created: 03/21/2021 07:49Updated: 10/16/2024 00:12
Changes: 03/21/2021 07:49 (38), 04/03/2021 12:44 (6), 04/03/2021 12:48 (18), 10/16/2024 00:12 (27)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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