Hashicorp Consul update for third-party components



Risk Medium
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2024-3596
CVE-2024-2511
CVE-2024-26458
CVE-2024-45338
CVE-2024-45337
CVE-2024-51744
CWE-ID CWE-327
CWE-400
CWE-401
CWE-285
CWE-1059
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #5 is available.
Vulnerable software
 Consul
Server applications / Other server solutions

Vendor HashiCorp

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU94063

Risk: Medium

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2024-3596

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to use of a broken or risky cryptographic algorithm in RADIUS Protocol. A remote user can perform a man-in-the-middle (MitM) attack and gain access to target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Consul: 1.0.0 - 1.20.1

CPE2.3 External links

https://github.com/hashicorp/consul/releases/tag/v1.20.2


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.

2) Resource exhaustion

EUVDB-ID: #VU88211

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-2511

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 unbounded memory growth when processing TLSv1.3 sessions. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that the non-default SSL_OP_NO_TICKET option is being used in TLSv1.3.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Consul: 1.0.0 - 1.20.1

CPE2.3 External links

https://github.com/hashicorp/consul/releases/tag/v1.20.2


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) Memory leak

EUVDB-ID: #VU88225

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26458

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak in /krb5/src/lib/rpc/pmap_rmt.c. A remote attacker can perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Consul: 1.0.0 - 1.20.1

CPE2.3 External links

https://github.com/hashicorp/consul/releases/tag/v1.20.2


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.

4) Resource exhaustion

EUVDB-ID: #VU101868

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-45338

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 in several Parse functions. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Consul: 1.0.0 - 1.20.1

CPE2.3 External links

https://github.com/hashicorp/consul/releases/tag/v1.20.2


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.

5) Improper authorization

EUVDB-ID: #VU101777

Risk: Medium

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2024-45337

CWE-ID: CWE-285 - Improper Authorization

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain unauthorized access to the application.

The vulnerability exists due to improper authorization caused by improper usage of the ServerConfig.PublicKeyCallback callback. A remote attacker can bypass authorization in certain cases and gain access to the application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Consul: 1.0.0 - 1.20.1

CPE2.3 External links

https://github.com/hashicorp/consul/releases/tag/v1.20.2


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.

6) Insufficient technical documentation

EUVDB-ID: #VU101894

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-51744

CWE-ID: CWE-1059 - Insufficient Technical Documentation

Exploit availability: No

Description

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

The vulnerability exists due due to unclear documentation of the error behavior in "ParseWithClaims". A remote attacker can trick the victim into accepting invalid tokens, which can lead to information disclosure.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Consul: 1.0.0 - 1.20.1

CPE2.3 External links

https://github.com/hashicorp/consul/releases/tag/v1.20.2


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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