CVE-2018-0140 Missing authorization in Cisco Email Security Appliance and Cisco Content Security Management Appliance

Medium 6.5 Published Updated

Authenticated attackers can bypass authorization checks to read other users' quarantined emails by modifying browser strings.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-0140?

CVE-2018-0140 is a medium-severity missing authorization vulnerability in Cisco Email Security Appliance and Cisco Content Security Management Appliance, published on 8 Feb 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the spam quarantine of Cisco Email Security Appliance and Cisco Content Security Management Appliance could allow an authenticated, remote attacker to download any message from the spam quarantine by modifying browser string information. The vulnerability is due to a lack of verification of authenticated user accounts. An attacker could exploit this vulnerability by modifying browser strings to see messages submitted by other users to the spam quarantine within their company. Cisco Bug IDs: CSCvg39759, CSCvg42295.

Weakness: CWE-425, CWE-200

Which versions are affected by CVE-2018-0140?

It affects 2 products.

Products include Cisco Content Security Management Appliance, Cisco Email Security Appliance Firmware.

How do I fix CVE-2018-0140?

No fix has been published for CVE-2018-0140 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-0140 being exploited?

There is no known exploitation of CVE-2018-0140 in the wild and no public exploit code.

Sources

Also known as GHSA-w5x3-hp8j-7gh2.

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