OpenSUSE Linux update for proftpd

Published: 2019-08-14
Severity Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2017-7418
CVE-2019-12815
CWE ID CWE-264
CWE-284
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software SUSE Linux Subscribe
Vendor SuSE

Security Advisory

1) Permissions, Privileges, and Access Controls

Severity: Low

CVSSv3: 3.9 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7418

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Description

The vulnerability allows a local user to access sensitive information.

The vulnerability exists due to incorrect implementation of the AllowChrootSymlinks option that checks only the last path component when enforcing it. A local user with ability to manage own FTP home directory can create a specially crafted symbolic link and gain unauthorized access to the filesystem.

Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 15

CPE External links

https://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Permissions, Privileges, and Access Controls

Severity: Medium

CVSSv3: 6.2 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-12815

CWE-ID: CWE-284 - Improper Access Control

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the application does not honor <Limit READ> and <Limit WRITE> configurations for SITE CPFR and SITE CPTO commands in the mod_copy module. A remote authenticated user with read permissions (e.g. user anonymous) can read contents of an arbitrary file on the server.



Mitigation

Update the affected packages.

Vulnerable software versions

SUSE Linux: 15

CPE External links

https://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.