CVE-2019-25018

02.02.2021, 18:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
mitre	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 26%

Vendor	Product	Version
mit	krb5-appl	𝑥 ≤ 1.0.3

𝑥

= Vulnerable software versions

Ubuntu Releases

Ubuntu Product

Codename

krb5-appl

groovy	dne
focal	dne
bionic	dne
xenial	dne
trusty	dne

Known Exploits!

References

https://bugzilla.suse.com/show_bug.cgi?id=1131109