irssi up to 0.8.19 buf.pl File permission

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

Summaryinfo

A vulnerability identified as problematic has been detected in irssi up to 0.8.19. The affected element is an unknown function of the file buf.pl. Performing a manipulation results in permission (File). This vulnerability was named CVE-2016-7553. The attack needs to be approached locally. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in irssi up to 0.8.19 (Messaging Software). It has been classified as problematic. This affects some unknown functionality of the file buf.pl. The manipulation with an unknown input leads to a permission vulnerability (File). CWE is classifying the issue as CWE-275. This is going to have an impact on availability. The summary by CVE is:

The buf.pl before 2.20 script in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.

The bug was discovered 02/27/2017. The weakness was presented 02/27/2017 by Salvatore Bonaccorso (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-7553 since 09/09/2016. The exploitability is told to be easy. Attacking locally is a requirement. A authentication is required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 93972 (Fedora 23 : irssi (2016-0551065fe0)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169272 (OpenSuSE Security Update for irssi (openSUSE-SU-2016:2524-1)).

Upgrading to version 2.20 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 (93972) and SecurityFocus (BID 93155†). See VDB-91841 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

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

Name: File
Class: Permission / File
CWE: CWE-275 / CWE-266
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: 93972
Nessus Name: Fedora 23 : irssi (2016-0551065fe0)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 861930
OpenVAS Name: Fedora Update for irssi FEDORA-2016-39de4eb5e7
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: irssi 2.20

Timelineinfo

09/09/2016 🔍
09/26/2016 +17 days 🔍
10/10/2016 +14 days 🔍
10/12/2016 +2 days 🔍
02/27/2017 +138 days 🔍
02/27/2017 +0 days 🔍
02/27/2017 +0 days 🔍
02/28/2017 +1 days 🔍
09/02/2020 +1282 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Salvatore Bonaccorso
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7553 (🔍)
GCVE (CVE): GCVE-0-2016-7553
GCVE (VulDB): GCVE-100-97323

OVAL: 🔍

SecurityFocus: 93155 - Irssi 'buf.pl' Local Information Disclosure Vulnerability
OSVDB: - CVE-2016-7553 - buf.pl, Irssi - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 02/28/2017 07:56
Updated: 09/02/2020 16:17
Changes: 02/28/2017 07:56 (79), 09/02/2020 16:17 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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