Multiple vulnerabilities in PaperCut NG



Published: 2023-07-25 | Updated: 2023-08-06
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-39143
CVE-2023-3486
CVE-2022-21724
CWE-ID CWE-22
CWE-400
CWE-665
Exploitation vector Network
Public exploit N/A
Vulnerable software
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PaperCut NG
Other software / Other software solutions

Vendor PaperCut Software

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Path traversal

EUVDB-ID: #VU78661

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39143

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the applications API interface. A remote non-authenticated attacker can send a specially crafted HTTP request and read or write arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PaperCut NG: 22.0.1 - 22.1.2

External links

http://www.papercut.com/kb/Main/SecurityBulletinJuly2023/
http://www.horizon3.ai/cve-2023-39143-papercut-path-traversal-file-upload-rce-vulnerability/


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.

2) Resource exhaustion

EUVDB-ID: #VU78660

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3486

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion by exhausting all available disk space and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PaperCut NG: 22.0.1 - 22.1.2

External links

http://www.tenable.com/security/research/tra-2023-23
http://www.papercut.com/kb/Main/SecurityBulletinJuly2023/


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.

3) Improper initialization

EUVDB-ID: #VU62714

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21724

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper initialization in pgjdbc driver when handling attacker-controlled URL in connection properties as the driver does not verify if the class implements the expected interface before instantiating the class. A remote attacker can pass specially crafted URL to the affected application and execute arbitrary code in the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PaperCut NG: 22.0.1 - 22.1.2

External links

http://www.papercut.com/kb/Main/SecurityBulletinJuly2023/


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.



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