Information disclosure in Dropbear - CVE-2018-15599
Published: August 22, 2018 / Updated: August 23, 2018
Vulnerability identifier: #VU14499
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-15599
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Matt Johnston
Affected software:
Dropbear
Dropbear
Detailed vulnerability description
The 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.
How to mitigate CVE-2018-15599
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.