Executive Summary
Summary | |
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Title | libssh security update |
Informations | |||
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Name | DSA-4322 | First vendor Publication | 2018-10-17 |
Vendor | Debian | Last vendor Modification | 2018-10-17 |
Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:N) | |||
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Cvss Base Score | 6.4 | Attack Range | Network |
Cvss Impact Score | 4.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Peter Winter-Smith of NCC Group discovered that libssh, a tiny C SSH library, contains an authentication bypass vulnerability in the server code. An attacker can take advantage of this flaw to successfully authenticate without any credentials by presenting the server an SSH2_MSG_USERAUTH_SUCCESS message in place of the SSH2_MSG_USERAUTH_REQUEST message which the server would expect to initiate authentication. For the stable distribution (stretch), this problem has been fixed in version 0.7.3-2+deb9u1. We recommend that you upgrade your libssh packages. For the detailed security status of libssh please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libssh |
Original Source
Url : http://www.debian.org/security/2018/dsa-4322 |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-287 | Improper Authentication |
CPE : Common Platform Enumeration
SAINT Exploits
Description | Link |
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libssh authentication bypass | More info here |
Nessus® Vulnerability Scanner
Date | Description |
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2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-6b390ceb36.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-c08cd808d3.nasl - Type : ACT_GATHER_INFO |
2018-10-22 | Name : The remote Fedora host is missing a security update. File : fedora_2018-bca1c1ab49.nasl - Type : ACT_GATHER_INFO |
2018-10-19 | Name : The remote Debian host is missing a security update. File : debian_DLA-1548.nasl - Type : ACT_GATHER_INFO |
2018-10-18 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4322.nasl - Type : ACT_GATHER_INFO |
2018-10-18 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_2383767cd22411e89623a4badb2f4699.nasl - Type : ACT_GATHER_INFO |
2018-10-17 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2018-289-01.nasl - Type : ACT_GATHER_INFO |
2018-10-17 | Name : The remote server is vulnerable to an authentication bypass. File : libssh_0_8_4.nasl - Type : ACT_GATHER_INFO |
2018-10-17 | Name : The remote server is vulnerable to an authentication bypass. File : libssh_0_8_4_remote.nasl - Type : ACT_ATTACK |
Alert History
Date | Informations |
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2018-10-18 17:21:57 |
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2018-10-17 21:18:30 |
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