CVE-2017-10601 Junos OS: Insufficient authentication for user login when a specific system configuration error occurs.

Critical 9.8 Published Updated

Attackers can bypass authentication and log in without a password if a specific configuration error causes a commit failure.

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

What is CVE-2017-10601?

CVE-2017-10601 is a critical authentication bypass vulnerability in Juniper Junos, published on 14 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A specific device configuration can result in a commit failure condition. When this occurs, a user is logged in without being prompted for a password while trying to login through console, ssh, ftp, telnet or su, etc., This issue relies upon a device configuration precondition to occur. Typically, device configurations are the result of a trusted administrative change to the system's running configuration. The following error messages may be seen when this failure occurs: mgd: error: commit failed: (statements constraint check failed) Warning: Commit failed, activating partial configuration. Warning: Edit the router configuration to fix these errors. If the administrative changes are not made that result in such a failure, then this issue is not seen. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 12.3 prior to 12.3R10, 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2 prior to 13.2R8; 13.3 prior to 13.3R7; 14.1 prior to 14.1R4-S12, 14.1R5, 14.1R6; 14.1X53 prior to 14.1X53-D30; 14.2 prior to 14.2R4; 15.1 prior to 15.1F2, 15.1F3, 15.1R2.

Weakness: CWE-287

Which versions are affected by CVE-2017-10601?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2017-10601?

No fix has been published for CVE-2017-10601 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2017-10601 being exploited?

There is no known exploitation of CVE-2017-10601 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-8vp7-j7jr-rqp7.

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