Gummi 0.6.5 link following

CVSS Meta Temp Score
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Gummi 0.6.5 and classified as problematic. Impacted is an unknown function. Executing a manipulation can lead to link following. This vulnerability is registered as CVE-2015-7758. The attack needs to be launched locally. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Gummi 0.6.5 and classified as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Gummi 0.6.5 allows local users to write to arbitrary files via a symlink attack on a temporary dot file that uses the name of an existing file and a (1) .aux, (2) .log, (3) .out, (4) .pdf, or (5) .toc extension for the file name, as demonstrated by .thesis.tex.aux.

The weakness was published 01/08/2016 (Website). The advisory is shared for download at bugs.debian.org. This vulnerability was named CVE-2015-7758 since 10/08/2015. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 87629 (openSUSE Security Update : gummi (openSUSE-2015-956)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124976 (Fedora Security Update for gummi (FEDORA-2016-94b0b50351)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87629), SecurityFocus (BID 77036†) and Vulnerability Center (SBV-55612†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87629
Nessus Name: openSUSE Security Update : gummi (openSUSE-2015-956)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for gummi FEDORA-2016-94
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/08/2015 🔍
10/08/2015 +0 days 🔍
10/08/2015 +0 days 🔍
12/26/2015 +79 days 🔍
12/29/2015 +3 days 🔍
01/08/2016 +10 days 🔍
01/08/2016 +0 days 🔍
01/10/2016 +2 days 🔍
01/11/2016 +1 days 🔍
11/16/2024 +3232 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-94b0b50351
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7758 (🔍)
GCVE (CVE): GCVE-0-2015-7758
GCVE (VulDB): GCVE-100-80140
SecurityFocus: 77036 - Gummi CVE-2015-7758 Local Race Condition Vulnerability
Vulnerability Center: 55612 - Gummi 0.6.5 Local File System Write via a Symlink Attack, Low

Entryinfo

Created: 01/10/2016 20:14
Updated: 11/16/2024 05:39
Changes: 01/10/2016 20:14 (53), 06/20/2018 08:51 (24), 07/02/2022 17:22 (2), 11/16/2024 05:39 (18)
Complete: 🔍
Cache ID: 216:369:103

Once again VulDB remains the best source for vulnerability data.

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