Amazon Linux AMI update for wget



Published: 2018-06-08 | Updated: 2018-06-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-0494
CWE-ID CWE-74
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Amazon Linux AMI
Operating systems & Components / Operating system

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cookie injection

EUVDB-ID: #VU12432

Risk: Low

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-0494

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to write arbitrary files on the target system.

The weakness exists due to improper processing of Set-Cookie responses. A remote attacker can return specially crafted data and inject arbitrary cookies into the cookie jar file.

Mitigation

Update the affected packages.

i686:
    wget-1.18-4.29.amzn1.i686
    wget-debuginfo-1.18-4.29.amzn1.i686

src:
    wget-1.18-4.29.amzn1.src

x86_64:
    wget-debuginfo-1.18-4.29.amzn1.x86_64
    wget-1.18-4.29.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

http://alas.aws.amazon.com/ALAS-2018-1040.html


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, proof of concept for this vulnerability is available.



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