Palo Alto PAN-OS up to 8.1.14/9.0.8/9.1.2 Authentication Interface Request buffer overflow
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.4 | $5k-$25k | 0.00 |
A vulnerability was found in Palo Alto PAN-OS up to 8.1.14/9.0.8/9.1.2 (Firewall Software) and classified as very critical. Affected by this issue is some unknown functionality of the component Authentication Interface. The manipulation as part of a Request leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:
A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.
The weakness was presented 09/09/2020 (Website). The advisory is shared for download at security.paloaltonetworks.com. This vulnerability is handled as CVE-2020-2040 since 12/04/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/09/2020).
As 0-day the estimated underground price was around $100k and more.
Upgrading to version 8.1.15, 9.0.9 or 9.1.3 eliminates this vulnerability.
See 160992, 160991, 160990 and 160989 for similar entries.
Product
Type
Vendor
Name
Version
- 8.1.0
- 8.1.1
- 8.1.2
- 8.1.3
- 8.1.4
- 8.1.5
- 8.1.6
- 8.1.7
- 8.1.8
- 8.1.9
- 8.1.10
- 8.1.11
- 8.1.12
- 8.1.13
- 8.1.14
- 9.0.0
- 9.0.1
- 9.0.2
- 9.0.3
- 9.0.4
- 9.0.5
- 9.0.6
- 9.0.7
- 9.0.8
- 9.1.0
- 9.1.1
- 9.1.2
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: 9.8VulDB Meta Temp Score: 9.6
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
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: PAN-OS 8.1.15/9.0.9/9.1.3
Timeline
12/04/2019 🔍09/09/2020 🔍
09/09/2020 🔍
09/09/2020 🔍
Sources
Vendor: paloaltonetworks.comAdvisory: security.paloaltonetworks.com
Status: Not defined
CVE: CVE-2020-2040 (🔍)
See also: 🔍
Entry
Created: 09/09/2020 21:13Updated: 09/09/2020 21:18
Changes: 09/09/2020 21:13 (41), 09/09/2020 21:18 (12)
Complete: 🔍
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