CVE-2019-25018 — Incorrect Authorization in Krb5-appl

CWE-863 — Incorrect Authorization4 documents4 sources
Severity
7.5HIGHNVD
CNA5.3
EPSS
0.1%
top 81.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
MIT Krb5-appl
Timeline
PublishedFeb 2
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

â–¶NVDmit/krb5-appl1.0.3

🔴Vulnerability Details

2
GHSA
GHSA-xxwg-wfjg-vgjp: In the rcp client in MIT krb5-appl through 1↗2022-05-24
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CVEList
CVE-2019-25018: In the rcp client in MIT krb5-appl through 1↗2021-02-02
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📋Vendor Advisories

1
Red Hat
krb5-appl: Improper directory name validation allows malicious server to bypass access restrictions↗2021-02-02
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CVE-2019-25018 — Incorrect Authorization in Krb5-appl | cvebase