5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.007 Low
EPSS
Percentile
79.3%
Issue Overview:
Improper write operations in readonly mode allow for zero-length file creation
The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.(CVE-2017-15906)
Affected Packages:
openssh
Issue Correction:
Run yum update openssh to update your system.
New Packages:
i686:
openssh-7.4p1-16.69.amzn1.i686
openssh-keycat-7.4p1-16.69.amzn1.i686
openssh-cavs-7.4p1-16.69.amzn1.i686
pam_ssh_agent_auth-0.10.3-2.16.69.amzn1.i686
openssh-ldap-7.4p1-16.69.amzn1.i686
openssh-clients-7.4p1-16.69.amzn1.i686
openssh-debuginfo-7.4p1-16.69.amzn1.i686
openssh-server-7.4p1-16.69.amzn1.i686
src:
openssh-7.4p1-16.69.amzn1.src
x86_64:
openssh-cavs-7.4p1-16.69.amzn1.x86_64
openssh-7.4p1-16.69.amzn1.x86_64
pam_ssh_agent_auth-0.10.3-2.16.69.amzn1.x86_64
openssh-keycat-7.4p1-16.69.amzn1.x86_64
openssh-ldap-7.4p1-16.69.amzn1.x86_64
openssh-clients-7.4p1-16.69.amzn1.x86_64
openssh-debuginfo-7.4p1-16.69.amzn1.x86_64
openssh-server-7.4p1-16.69.amzn1.x86_64
Red Hat: CVE-2017-15906
Mitre: CVE-2017-15906
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | openssh | < 7.4p1-16.69.amzn1 | openssh-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssh-keycat | < 7.4p1-16.69.amzn1 | openssh-keycat-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssh-cavs | < 7.4p1-16.69.amzn1 | openssh-cavs-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | pam_ssh_agent_auth | < 0.10.3-2.16.69.amzn1 | pam_ssh_agent_auth-0.10.3-2.16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssh-ldap | < 7.4p1-16.69.amzn1 | openssh-ldap-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssh-clients | < 7.4p1-16.69.amzn1 | openssh-clients-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssh-debuginfo | < 7.4p1-16.69.amzn1 | openssh-debuginfo-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssh-server | < 7.4p1-16.69.amzn1 | openssh-server-7.4p1-16.69.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | openssh-cavs | < 7.4p1-16.69.amzn1 | openssh-cavs-7.4p1-16.69.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssh | < 7.4p1-16.69.amzn1 | openssh-7.4p1-16.69.amzn1.x86_64.rpm |
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.007 Low
EPSS
Percentile
79.3%