Red Hat Software Collections update for rh-git29-git

1) OS command injection

EUVDB-ID: #VU7889

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2017-1000117

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The weakness exists due to command injection flaw. A remote attacker (e.g., repository) can return a specially crafted 'ssh://' URL during 'clone' commands to execute arbitrary shell commands with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-git29-git (Red Hat package): before 2.9.3-3.el6

CPE2.3

• cpe:2.3:a:red_hat:rh-git29-git_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2017:2491

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

2) Privilege escalation

EUVDB-ID: #VU6933

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-8386

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

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to gain elevated privileges on the target system.

The weakness exists due to an error when handling command-line options for the restricted set of git-shell commands. A remote attacker can use a repository name that starts with a - (dash) character to bypass git-shell restrictions and gain elevated privileges.

Successful exploitation of the vulnerability results in access to the system and information disclosure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-git29-git (Red Hat package): before 2.9.3-3.el6

CPE2.3

• cpe:2.3:a:red_hat:rh-git29-git_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2017:2491

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.