VIM up to 8.0.1262 SWP File fileio.c information disclosure

Summaryinfo

A vulnerability classified as problematic has been found in VIM up to 8.0.1262. This affects an unknown function of the file fileio.c of the component SWP File Handler. Performing a manipulation results in information disclosure. This vulnerability is identified as CVE-2017-17087. The attack is only possible with local access. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in VIM up to 8.0.1262 (Word Processing Software). This affects some unknown processing of the file fileio.c of the component SWP File Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

fileio.c in Vim prior to 8.0.1263 sets the group ownership of a .swp file to the editor's primary group (which may be different from the group ownership of the original file), which allows local users to obtain sensitive information by leveraging an applicable group membership, as demonstrated by /etc/shadow owned by root:shadow mode 0640, but /etc/.shadow.swp owned by root:users mode 0640, a different vulnerability than CVE-2017-1000382.

The bug was discovered 12/01/2017. The weakness was released 12/01/2017 (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2017-17087 since 12/01/2017. Attacking locally is a requirement. Required for exploitation is a authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 111955 (Photon OS 2.0: Redis / Vim PHSA-2018-2.0-0070 (deprecated)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family PhotonOS Local Security Checks and running in the context l.

Upgrading to version 8.0.1263 eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111955). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Word Processing Software

Name

• VIM

Version

• 8.0.1262

License

• open-source

Website

• Product: https://github.com/vim/vim/

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