Webcalendar up to 1.2.7 path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Webcalendar up to 1.2.7. Affected is an unknown function. The manipulation results in path traversal. This vulnerability is reported as CVE-2017-10841. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Webcalendar up to 1.2.7 (Calendar Software). Affected is an unknown code block. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. CVE summarizes:

Directory traversal vulnerability in WebCalendar 1.2.7 and earlier allows authenticated attackers to read arbitrary files via unspecified vectors.

The bug was discovered 08/24/2017. The weakness was disclosed 08/29/2017 (Website). The advisory is shared for download at jvn.jp. This vulnerability is traded as CVE-2017-10841 since 07/04/2017. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103905 (Fedora 26 : WebCalendar (2017-c9abeb3158)), 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 276943 (Fedora Security Update for WebCalendar (FEDORA-2017-26a53ccbdf)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (103905). The entry VDB-105851 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
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: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103905
Nessus Name: Fedora 26 : WebCalendar (2017-c9abeb3158)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for WebCalendar FEDORA-2017-c9abeb3158
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: github.com

Timelineinfo

07/04/2017 🔍
08/24/2017 +51 days 🔍
08/28/2017 +4 days 🔍
08/29/2017 +1 days 🔍
08/29/2017 +0 days 🔍
10/09/2017 +41 days 🔍
10/18/2017 +9 days 🔍
12/27/2022 +1896 days 🔍

Sourcesinfo

Advisory: FEDORA-2017-c9abeb3158
Status: Not defined

CVE: CVE-2017-10841 (🔍)
GCVE (CVE): GCVE-0-2017-10841
GCVE (VulDB): GCVE-100-105852
See also: 🔍

Entryinfo

Created: 08/29/2017 11:45
Updated: 12/27/2022 07:18
Changes: 08/29/2017 11:45 (66), 11/11/2019 08:50 (9), 12/27/2022 07:11 (4), 12/27/2022 07:18 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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