GNU wget up to 1.17 HTTP Redirect File 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU wget up to 1.17. It has been declared as critical. This impacts an unknown function of the component HTTP Redirect Handler. Executing a manipulation can lead to 7pk security (File). This vulnerability appears as CVE-2016-4971. The attack may be performed from remote. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU wget up to 1.17 (Automation Software). It has been declared as critical. This vulnerability affects some unknown processing of the component HTTP Redirect Handler. The manipulation with an unknown input leads to a 7pk security vulnerability (File). The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect integrity, and availability. CVE summarizes:

GNU wget before 1.18 allows remote servers to write to arbitrary files by redirecting a request from HTTP to a crafted FTP resource.

The bug was discovered 06/09/2016. The weakness was presented 06/09/2016 by Dawid Golunski as confirmed release notes (Mailing List). The advisory is shared for download at lists.gnu.org. This vulnerability was named CVE-2016-4971 since 05/24/2016. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1211.

A public exploit has been developed by Dawid Golunski in Shell and been published 4 weeks after the advisory. It is possible to download the exploit at legalhackers.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 91573 (Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : wget (SSA:2016-165-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169147 (SUSE Enterprise Linux Security Update for wget (SUSE-SU-2016:2226-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (40064), Tenable (91573), SecurityFocus (BID 91530†) and SecurityTracker (ID 1036133†). See VDB-100719 and VDB-100720 for similar entries. Once again VulDB remains the best source for vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.8
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: File
Class: 7pk security / File
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Dawid Golunski
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
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Nessus ID: 91573
Nessus Name: Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : wget (SSA:2016-165-01)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58361
OpenVAS Name: Fedora Update for wget FEDORA-2016-e14374472f
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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0-Day Time: 🔍
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Exploit Delay Time: 🔍

Patch: git.savannah.gnu.org

Timelineinfo

05/24/2016 🔍
06/09/2016 +16 days 🔍
06/09/2016 +0 days 🔍
06/09/2016 +0 days 🔍
06/09/2016 +0 days 🔍
06/14/2016 +5 days 🔍
06/20/2016 +6 days 🔍
06/24/2016 +4 days 🔍
06/30/2016 +6 days 🔍
07/06/2016 +6 days 🔍
12/01/2024 +3070 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: USN-3012-1
Researcher: Dawid Golunski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4971 (🔍)
GCVE (CVE): GCVE-0-2016-4971
GCVE (VulDB): GCVE-100-88108
SecurityFocus: 91530 - GNU Wget CVE-2016-4971 Arbitrary File Overwrite Vulnerability
SecurityTracker: 1036133

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/24/2016 11:05
Updated: 12/01/2024 07:21
Changes: 06/24/2016 11:05 (90), 07/24/2019 12:26 (4), 08/24/2022 14:45 (4), 08/24/2022 14:50 (1), 12/01/2024 07:21 (14)
Complete: 🔍
Cache ID: 216::103

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