Executive Summary
| Summary | |
|---|---|
| Title | New unzip packages fix unauthorised permissions modification |
| Informations | |||
|---|---|---|---|
| Name | DSA-903 | First vendor Publication | 2005-11-21 |
| Vendor | Debian | Last vendor Modification | 2006-01-12 |
| Severity (Vendor) | N/A | Revision | 2 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| 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:L/AC:H/Au:N/C:P/I:N/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 1.2 | Attack Range | Local |
| Cvss Impact Score | 2.9 | Attack Complexity | High |
| Cvss Expoit Score | 1.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| The unzip update in DSA 903 contained a regression so that symbolic links that are resolved later in a zip archive aren't supported anymore. This update corrects this behaviour. For completeness, below plese find the original advisory text: Imran Ghory discovered a race condition in the permissions setting code in unzip. When decompressing a file in a directory an attacker has access to, unzip could be tricked to set the file permissions to a different file the user has permissions to. For the old stable distribution (woody) this problem has been fixed in version 5.50-1woody5. For the stable distribution (sarge) this problem has been fixed in version 5.52-1sarge3. For the unstable distribution (sid) this problem has been fixed in version 5.52-6. We recommend that you upgrade your unzip package. |
Original Source
| Url : http://www.debian.org/security/2006/dsa-903 |
CAPEC : Common Attack Pattern Enumeration & Classification
| Id | Name |
|---|---|
| CAPEC-26 | Leveraging Race Conditions |
| CAPEC-27 | Leveraging Race Conditions via Symbolic Links |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:9975 | |||
| Oval ID: | oval:org.mitre.oval:def:9975 | ||
| Title: | Race condition in Unzip 5.52 allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by Unzip after the decompression is complete. | ||
| Description: | Race condition in Unzip 5.52 allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by Unzip after the decompression is complete. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2005-2475 | Version: | 5 |
| Platform(s): | Red Hat Enterprise Linux 3 CentOS Linux 3 Red Hat Enterprise Linux 4 CentOS Linux 4 Oracle Linux 4 | Product(s): | |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 |
OpenVAS Exploits
| Date | Description |
|---|---|
| 2008-09-04 | Name : FreeBSD Ports: unzip, zh-unzip, ko-unzip File : nvt/freebsd_unzip.nasl |
| 2008-01-17 | Name : Debian Security Advisory DSA 903-1 (unzip) File : nvt/deb_903_1.nasl |
| 2008-01-17 | Name : Debian Security Advisory DSA 903-2 (unzip) File : nvt/deb_903_2.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 18530 | UnZip Race Condition Arbitrary File Permission Modification UnZip contains a flaw that may allow a malicious local user to change permissions of arbitrary files on the system. The issue is triggered via a hard link attack on a file while it is being decompressed. It is possible that the flaw may allow arbitrary file permission modification resulting in a loss of confidentiality and integrity. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2013-07-12 | Name : The remote Oracle Linux host is missing a security update. File : oraclelinux_ELSA-2007-0203.nasl - Type : ACT_GATHER_INFO |
| 2013-06-29 | Name : The remote CentOS host is missing a security update. File : centos_RHSA-2007-0203.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing a security update. File : sl_20070501_unzip_on_SL4_x.nasl - Type : ACT_GATHER_INFO |
| 2007-05-02 | Name : The remote Red Hat host is missing a security update. File : redhat-RHSA-2007-0203.nasl - Type : ACT_GATHER_INFO |
| 2006-10-14 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-903.nasl - Type : ACT_GATHER_INFO |
| 2006-05-13 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_9750cf22216d11dabc01000e0c2e438a.nasl - Type : ACT_GATHER_INFO |
| 2006-01-15 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-191-1.nasl - Type : ACT_GATHER_INFO |
| 2005-11-02 | Name : The remote Mandrake Linux host is missing a security update. File : mandrake_MDKSA-2005-197.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:34:40 |
|
