webERP 4.15 Access Control Z_CreateCompanyTemplateFile.php TemplateName access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.3 | $0-$5k | 0.00 |
A vulnerability was found in webERP 4.15. It has been declared as problematic. This vulnerability affects an unknown code of the file Z_CreateCompanyTemplateFile.php of the component Access Control. The manipulation of the argument TemplateName
with the input value ../
leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect integrity, and availability. CVE summarizes:
In webERP 4.15, Z_CreateCompanyTemplateFile.php has Incorrect Access Control, leading to the overwrite of an existing .sql file on the target web site by creating a template and then using ../ directory traversal in the TemplateName parameter.
The bug was discovered 12/20/2018. The weakness was released 12/24/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-20420 since 12/23/2018. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is needed for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.
The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:Z_CreateCompanyTemplateFile.php it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.3
VulDB Base Score: 3.8
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 4.9
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: Access controlCWE: CWE-284 / CWE-266
ATT&CK: T1068
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
Google Hack: 🔍
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
12/20/2018 🔍12/23/2018 🔍
12/23/2018 🔍
12/24/2018 🔍
12/24/2018 🔍
04/23/2020 🔍
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2018-20420 (🔍)
Entry
Created: 12/24/2018 09:58Updated: 04/23/2020 18:45
Changes: 12/24/2018 09:58 (58), 04/23/2020 18:45 (1)
Complete: 🔍
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