CVE-2018-18809 TIBCO JasperReports: file path flaw
In plain words: The program can be tricked into reading or writing files outside the folder it should stay in. Leaks files such as passwords and settings, or overwrites important ones.
Confirmed exploited by CISA on · US federal patch deadline Jan 19, 2023
What to do
- Install TIBCO's security update for JasperReports. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- TIBCO JasperReports Library Directory Traversal Vulnerability
- Product
- TIBCO JasperReports
- CISA description
- TIBCO JasperReports Library contains a directory-traversal vulnerability that may allow web server users to access contents of the host system.
- Type of flaw
- File path flaw (CWE-22)
- Confirmed exploited
- Dec 29, 2022
- US federal patch deadline
- Jan 19, 2023
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2018-18809 ·
Questions about CVE-2018-18809
Is CVE-2018-18809 being exploited?
Yes. CISA added CVE-2018-18809 to its Known Exploited Vulnerabilities catalog on Dec 29, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2018-18809?
Install TIBCO's security update for JasperReports. If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2018-18809?
Only if you use TIBCO JasperReports. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.