CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.1 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in ISC BIND up to 9.11.21/9.16.5/9.17.3/9.1.21-S1 (Domain Name Software). This vulnerability affects an unknown function of the component PKCS11 Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:
In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with "--enable-native-pkcs11" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker
The weakness was shared 08/21/2020 (Website). The advisory is available at kb.isc.org. This vulnerability was named CVE-2020-8623 since 02/05/2020. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.
Upgrading to version 9.11.22, 9.16.6, 9.17.4 or 9.1.22 eliminates this vulnerability.
The entries 160175, 160173, 160172 and 160171 are related to this item.
Product
Type
Vendor
Name
Version
- 9.1.21-S1
- 9.11.0
- 9.11.1
- 9.11.2
- 9.11.3
- 9.11.4
- 9.11.5
- 9.11.6
- 9.11.7
- 9.11.8
- 9.11.9
- 9.11.10
- 9.11.11
- 9.11.12
- 9.11.13
- 9.11.14
- 9.11.15
- 9.11.16
- 9.11.17
- 9.11.18
- 9.11.19
- 9.11.20
- 9.11.21
- 9.16.0
- 9.16.1
- 9.16.2
- 9.16.3
- 9.16.4
- 9.16.5
- 9.17.0
- 9.17.1
- 9.17.2
- 9.17.3
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: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
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: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
ATT&CK: T1499
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: BIND 9.11.22/9.16.6/9.17.4/9.1.22
Timeline
02/05/2020 🔍08/21/2020 🔍
08/22/2020 🔍
11/11/2020 🔍
Sources
Vendor: isc.orgAdvisory: kb.isc.org
Status: Not defined
Confirmation: 🔍
CVE: CVE-2020-8623 (🔍)
See also: 🔍
Entry
Created: 08/22/2020 09:24Updated: 11/11/2020 00:28
Changes: 08/22/2020 09:24 (40), 08/22/2020 09:29 (12), 11/11/2020 00:20 (1), 11/11/2020 00:28 (1)
Complete: 🔍
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