Rostelecom CS-C2SHW 5.0.082.1 Firmware Update vc\version.json fw-sign os command injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.6 | $0-$5k | 0.00 |
A vulnerability was found in Rostelecom CS-C2SHW 5.0.082.1. It has been classified as critical. Affected is an unknown functionality of the file vc\version.json of the component Firmware Update Handler. The manipulation of the argument fw-sign
with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was released 01/27/2021. The advisory is available at dil4rd.medium.com. This vulnerability is traded as CVE-2020-27540. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.
By approaching the search of inurl:vc\version.json 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
Vendor
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: 7.6VulDB Meta Temp Score: 7.6
VulDB Base Score: 5.5
VulDB Temp Score: 5.5
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: Os command injectionCWE: CWE-78 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
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
10/21/2020 🔍01/27/2021 🔍
01/27/2021 🔍
02/19/2021 🔍
Sources
Advisory: dil4rd.medium.comStatus: Not defined
CVE: CVE-2020-27540 (🔍)
Entry
Created: 01/27/2021 08:25Updated: 02/19/2021 19:20
Changes: 01/27/2021 08:25 (38), 02/19/2021 19:17 (2), 02/19/2021 19:20 (18)
Complete: 🔍
Cache ID: 3:B33:103
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