CVE-1999-1091

UNIX news readers tin and rtin create the /tmp/.tin_log file with insecure permissions and follow symlinks, which allows attackers to modify the permissions of files writable by the user via a symlink attack.

What this means for your business

It affects Rtin. It matters if your company, or a supplier that handles your data, runs it.
An attacker can use it remotely, over a network.

What to do

1Check whether your company or your suppliers run Rtin, and which version. The affected versions are listed further down this page.
2If you do, follow the vendor's guidance. No patch reference has been published yet.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS: 5.0 (v2.0)
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
Assigned by: cve@mitre.org

Dates

Published: 2002-01-15
Last modified: 2026-09-25
Sources: NVD

Affected products

Rtin Rtinall versions
Tin Tin1.2

As listed in the NVD configuration data. Not a statement about your estate.