Vulnerability CVE-2020-25289
Published: 2020-09-13

Description:
The VPN service in AVAST SecureLine before 5.6.4982.470 allows local users to write to arbitrary files via an Object Manager symbolic link from the log directory (which has weak permissions).

Type:

CWE-59

 (Improper Link Resolution Before File Access ('Link Following'))

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Avast -> Secureline vpn 

 References:
http://zeifan.my/security/arbitrary%20file/eop/2020/07/21/avast-secureline-vpn-arb-file-eop.html
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