KDE KAuth up to 5.54 Helpers DBusHelperProxy.cpp Parameter input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.8 | $0-$5k | 0.00 |
A vulnerability was found in KDE KAuth up to 5.54. It has been classified as very critical. Affected is an unknown part of the file DBusHelperProxy.cpp of the component Helpers. The manipulation as part of a Parameter leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
KDE KAuth before 5.55 allows the passing of parameters with arbitrary types to helpers running as root over DBus via DBusHelperProxy.cpp. Certain types can cause crashes, and trigger the decoding of arbitrary images with dynamically loaded plugins. In other words, KAuth unintentionally causes this plugin code to run as root, which increases the severity of any possible exploitation of a plugin vulnerability.
The bug was discovered 04/26/2019. The weakness was released 05/07/2019 as Bug 1124863 as not defined bug report (Bugzilla). The advisory is available at bugzilla.suse.com. This vulnerability is traded as CVE-2019-7443 since 02/05/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/15/2023).
The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $0-$5k.
Upgrading to version 5.55 eliminates this vulnerability.
Product
Vendor
Name
Version
- 5.0
- 5.1
- 5.2
- 5.3
- 5.4
- 5.5
- 5.6
- 5.7
- 5.8
- 5.9
- 5.10
- 5.11
- 5.12
- 5.13
- 5.14
- 5.15
- 5.16
- 5.17
- 5.18
- 5.19
- 5.20
- 5.21
- 5.22
- 5.23
- 5.24
- 5.25
- 5.26
- 5.27
- 5.28
- 5.29
- 5.30
- 5.31
- 5.32
- 5.33
- 5.34
- 5.35
- 5.36
- 5.37
- 5.38
- 5.39
- 5.40
- 5.41
- 5.42
- 5.43
- 5.44
- 5.45
- 5.46
- 5.47
- 5.48
- 5.49
- 5.50
- 5.51
- 5.52
- 5.53
- 5.54
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: 9.0VulDB Meta Temp Score: 8.8
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.1
NVD Vector: 🔍
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: Input validationCWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍
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: KAuth 5.55
Patch: cgit.kde.org
Timeline
02/05/2019 🔍04/26/2019 🔍
05/07/2019 🔍
05/08/2019 🔍
09/15/2023 🔍
Sources
Vendor: kde.orgAdvisory: Bug 1124863
Status: Not defined
Confirmation: 🔍
CVE: CVE-2019-7443 (🔍)
Entry
Created: 05/08/2019 07:32Updated: 09/15/2023 07:20
Changes: 05/08/2019 07:32 (62), 06/07/2020 18:04 (2), 09/15/2023 07:20 (4)
Complete: 🔍
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