SB2016050943 - Multiple vulnerabilities in HPE HP-UX CIFS-Server (Samba)
Published: May 9, 2016 Updated: April 27, 2023
Breakdown by Severity
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- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2015-5252)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
vfs.c in smbd in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, when share names with certain substring relationships exist, allows remote attackers to bypass intended file-access restrictions via a symlink that points outside of a share.
2) Input validation error (CVE-ID: CVE-2015-5296)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.
3) Information disclosure (CVE-ID: CVE-2015-5299)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The shadow_copy2_get_shadow_copy_data function in modules/vfs_shadow_copy2.c in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 does not verify that the DIRECTORY_LIST access right has been granted, which allows remote attackers to access snapshots by visiting a shadow copy directory.
4) Input validation error (CVE-ID: CVE-2014-0178)
The vulnerability allows a remote #AU# to gain access to sensitive information.
Samba 3.6.6 through 3.6.23, 4.0.x before 4.0.18, and 4.1.x before 4.1.8, when a certain vfs shadow copy configuration is enabled, does not properly initialize the SRV_SNAPSHOT_ARRAY response field, which allows remote authenticated users to obtain potentially sensitive information from process memory via a (1) FSCTL_GET_SHADOW_COPY_DATA or (2) FSCTL_SRV_ENUMERATE_SNAPSHOTS request. Per: http://cwe.mitre.org/data/definitions/665.html "CWE-665: Improper Initialization"
5) Credentials management (CVE-ID: CVE-2013-4496)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Samba 3.x before 3.6.23, 4.0.x before 4.0.16, and 4.1.x before 4.1.6 does not enforce the password-guessing protection mechanism for all interfaces, which makes it easier for remote attackers to obtain access via brute-force ChangePasswordUser2 (1) SAMR or (2) RAP attempts.
6) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-4475)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Samba 3.2.x through 3.6.x before 3.6.20, 4.0.x before 4.0.11, and 4.1.x before 4.1.1, when vfs_streams_depot or vfs_streams_xattr is enabled, allows remote attackers to bypass intended file restrictions by leveraging ACL differences between a file and an associated alternate data stream (ADS).
7) Input validation error (CVE-ID: CVE-2013-0213)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The Samba Web Administration Tool (SWAT) in Samba 3.x before 3.5.21, 3.6.x before 3.6.12, and 4.x before 4.0.2 allows remote attackers to conduct clickjacking attacks via a (1) FRAME or (2) IFRAME element. Per: http://capec.mitre.org/data/definitions/103.html "CAPEC-103: Clickjacking"
8) Cross-site request forgery (CVE-ID: CVE-2013-0214)
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
9) Input validation error (CVE-ID: CVE-2014-0244)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The sys_recvfrom function in nmbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed UDP packet.
10) Buffer overflow (CVE-ID: CVE-2014-3493)
The vulnerability allows a remote #AU# to perform service disruption.
The push_ascii function in smbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote authenticated users to cause a denial of service (memory corruption and daemon crash) via an attempt to read a Unicode pathname without specifying use of Unicode, leading to a character-set conversion failure that triggers an invalid pointer dereference.
Remediation
Install update from vendor's website.