CVE-2019-25018

HIGHCVSS 7.5/10EPSS 1.61%

Last modified

CVE-2019-25018 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. EPSS estimates a 1.61% chance of exploitation in the next 30 days.

Description

In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying the permissions of the target directory on the client side. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability
1.61%

72.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MitKrb5-Appl<= 1.0.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-25018?
In the rcp client in MIT krb5-appl through 1.0.3, malicious servers could bypass intended access restrictions via the filename of . or an empty filename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying the permissions of the target directory on the client side. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.
How severe is CVE-2019-25018?
CVE-2019-25018 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.61% probability of exploitation in the next 30 days.
How do I fix CVE-2019-25018?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-25018?

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Source: NVD / NIST