K7 Antivirus 15.1.0309 K7Sentry.sys null pointer dereference
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.5 | $0-$5k | 0.00 |
Summary
A vulnerability was found in K7 Antivirus 15.1.0309 and classified as problematic. This issue affects some unknown processing in the library K7Sentry.sys. The manipulation results in null pointer dereference. This vulnerability is known as CVE-2017-17700. It is possible to launch the attack remotely. No exploit is available.
Details
A vulnerability, which was classified as problematic, was found in K7 Antivirus 15.1.0309 (Anti-Malware Software). Affected is an unknown code in the library K7Sentry.sys. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:
K7Sentry.sys 15.1.0.59 in K7 Antivirus 15.1.0309 has a NULL pointer dereference via a 0x950025a4 DeviceIoControl request.
The bug was discovered 12/14/2017. The weakness was published 12/15/2017 (Website). The advisory is available at github.com. This vulnerability is traded as CVE-2017-17700 since 12/15/2017. The exploitability is told to be easy. 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 12/15/2019).
The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Similar entries are available at VDB-110731 and VDB-110729. 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: 7.6VulDB Meta Temp Score: 7.6
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
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: Null pointer dereferenceCWE: CWE-476 / CWE-404
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: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/14/2017 🔍12/15/2017 🔍
12/15/2017 🔍
12/15/2017 🔍
12/16/2017 🔍
12/15/2019 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2017-17700 (🔍)
GCVE (CVE): GCVE-0-2017-17700
GCVE (VulDB): GCVE-100-110730
See also: 🔍
Entry
Created: 12/16/2017 16:28Updated: 12/15/2019 15:31
Changes: 12/16/2017 16:28 (58), 12/15/2019 15:31 (1)
Complete: 🔍
Cache ID: 216:B23:103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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