Multiple vulnerabilities in Node.js

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU79332

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-2023-32002

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to improperly imposed security restrictions for the Module._load() method. A remote attacker can bypass the policy mechanism and include modules outside of the policy.json definition for a given module.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 16.0.0 - 20.5.0

CPE2.3

External links

http://nodejs.org/en/blog/vulnerability/august-2023-security-releases
http://github.com/nodejs/node/releases/tag/v16.20.2
http://github.com/nodejs/node/releases/tag/v18.17.1
http://github.com/nodejs/node/releases/tag/v20.5.1

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU79334

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-2023-32006

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to improperly imposed security restrictions for the module.constructor.createRequire() method. A remote attacker can bypass the policy mechanism and include modules outside of the policy.json definition for a given module.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 16.0.0 - 20.5.0

CPE2.3

External links

http://nodejs.org/en/blog/vulnerability/august-2023-security-releases
http://github.com/nodejs/node/releases/tag/v16.20.2
http://github.com/nodejs/node/releases/tag/v18.17.1
http://github.com/nodejs/node/releases/tag/v20.5.1

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU79335

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-2023-32559

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to usage of deprecated API process.binding(). A remote attacker can bypass the policy mechanism by requiring internal modules and eventually take advantage of process.binding('spawn_sync') run arbitrary code, outside of the limits defined in a policy.json file.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 16.0.0 - 20.5.0

CPE2.3

External links

http://nodejs.org/en/blog/vulnerability/august-2023-security-releases
http://github.com/nodejs/node/releases/tag/v16.20.2
http://github.com/nodejs/node/releases/tag/v18.17.1
http://github.com/nodejs/node/releases/tag/v20.5.1

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

4) Path traversal

EUVDB-ID: #VU79336

Risk: Medium

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

CVE-ID: CVE-2023-32558

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 within the deprecated API process.binding(). A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Node.js: 20.0.0 - 20.5.0

CPE2.3

External links

http://github.com/nodejs/node/releases/tag/v20.5.1
http://nodejs.org/en/blog/vulnerability/august-2023-security-releases

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

5) Path traversal

EUVDB-ID: #VU79337

Risk: Medium

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

CVE-ID: CVE-2023-32004

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 improper handling of Buffers in file system APIs. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Node.js: 20.0.0 - 20.5.0

CPE2.3

External links

http://github.com/nodejs/node/releases/tag/v20.5.1
http://nodejs.org/en/blog/vulnerability/august-2023-security-releases

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

6) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU79339

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-32005

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

Exploit availability: No

Description

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

The vulnerability exists due to an inadequate permission model that fails to restrict file stats through the fs.statfs API. A remote user can retrieve stats from files that they do not have explicit read access to.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 20.0.0 - 20.5.0

CPE2.3

External links

http://github.com/nodejs/node/releases/tag/v20.5.1
http://nodejs.org/en/blog/vulnerability/august-2023-security-releases

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

7) Path traversal

EUVDB-ID: #VU79340

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-32003

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 a missing check in the fs.mkdtemp() API. A remote attacker can bypass the permission model check using a path traversal attack in fs.mkdtemp() and fs.mkdtempSync().

Mitigation

Install update from vendor's website.

Vulnerable software versions

Node.js: 20.0.0 - 20.5.0

CPE2.3

External links

http://github.com/nodejs/node/releases/tag/v20.5.1
http://nodejs.org/en/blog/vulnerability/august-2023-security-releases

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

Risk	Medium
Patch available	YES
Number of vulnerabilities	7
CVE-ID	CVE-2023-32002 CVE-2023-32006 CVE-2023-32559 CVE-2023-32558 CVE-2023-32004 CVE-2023-32005 CVE-2023-32003
CWE-ID	CWE-264 CWE-22
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Node.js Server applications / Web servers
Vendor	Node.js Foundation