Man-in-the-Middle (MitM) attack in putty (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-14002 |
| CWE-ID | CWE-300 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
putty (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Man-in-the-Middle (MitM) attack
EUVDB-ID: #VU29487
Risk: Medium
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-14002
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a Man-in-the-Middle (MitM) attack.
The vulnerability exists due to an observable discrepancy issue in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).
MitigationInstall update from vendor's website.
Vulnerable software versionsputty (Alpine package): 0.68-r0 - 0.74-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=e4ccef76f09ac91c0e882a940613b51444d82a56
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
