Information disclosure in Dropbear
| Risk | Low |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-15599 |
| CWE-ID | CWE-200 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Dropbear Server applications / Remote management servers, RDP, SSH |
| Vendor | Matt Johnston |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Information disclosure
EUVDB-ID: #VU14499
Risk: Low
CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:U/RC:C]
CVE-ID: CVE-2018-15599
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists in the recv_msg_userauth_request function, as defined in the svr-auth.c source code file due to the way fields in SSH_MSG_USERAUTH messages are handled based on username validity. A remote attacker can send an authentication request packet and access sensitive information, such as valid usernames.
MitigationCybersecurity Help is currently unaware of any solutions addressing the vulnerability.
Vulnerable software versionsDropbear: 0.28 - 2018.76
External linkshttp://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002109.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
