K7 Antivirus 15.1.0306 Driver K7Sentry.sys input validation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in K7 Antivirus 15.1.0306. Affected by this vulnerability is an unknown functionality in the library K7Sentry.sys of the component Driver. Such manipulation leads to input validation. This vulnerability is documented as CVE-2018-5217. The attack needs to be performed locally. There is not any exploit available.
Details
A vulnerability, which was classified as critical, has been found in K7 Antivirus 15.1.0306 (Anti-Malware Software). Affected by this issue is some unknown functionality in the library K7Sentry.sys of the component Driver. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:
In K7 Antivirus 15.1.0306, the driver file (K7Sentry.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x95002578.
The bug was discovered 01/04/2018. The weakness was released 01/04/2018 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2018-5217 since 01/04/2018. Local access is required to approach this attack. A simple authentication is required for exploitation. 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 12/19/2019).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Entries connected to this vulnerability are available at VDB-111389, VDB-111388 and VDB-111387. If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 7.2
VulDB Base Score: 6.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
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: 🔍
Physical: Partially
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: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
01/04/2018 🔍01/04/2018 🔍
01/04/2018 🔍
01/04/2018 🔍
01/05/2018 🔍
12/19/2019 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2018-5217 (🔍)
GCVE (CVE): GCVE-0-2018-5217
GCVE (VulDB): GCVE-100-111386
See also: 🔍
Entry
Created: 01/05/2018 08:51Updated: 12/19/2019 19:15
Changes: 01/05/2018 08:51 (59), 12/19/2019 19:15 (1)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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