| ID |
CVE-2020-12443
|
| Sažetak |
BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename (lowercase) value can be a .pdf filename while the presFilename (mixed case) value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to bigbluebutton.properties. NOTE: this issue exists because of an ineffective mitigation to CVE-2020-12112 in which there was an attempted fix within an NGINX configuration file, without considering that the relevant part of NGINX is case-insensitive. |
| Reference |
|
| CVSS |
| Base: | 7.5 |
| Impact: | 6.4 |
| Exploitability: | 10.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| PARTIAL |
PARTIAL |
PARTIAL |
|
| CVSS vektor |
AV:N/AC:L/Au:N/C:P/I:P/A:P |
| Zadnje važnije ažuriranje |
06-05-2020 - 14:02 |
| Objavljeno |
29-04-2020 - 02:15 |
