SB2025051804 - Multiple vulnerabilities in Meinberg LANTIME firmware (July 2024)
Published: May 18, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 12 secuirty vulnerabilities.
1) Missing authorization (CVE-ID: CVE-2024-1488)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to missing authorization in the unbound.service that listens on localhost on port 8953. A local user can send a specially crafted request and alter the server configuration.
2) Resource exhaustion (CVE-ID: CVE-2023-50387)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation when processing DNSSEC related records. A remote attacker can trigger resource exhaustion by forcing the DNS server to query a specially crafted DNSSEC zone and perform a denial of service (DoS) attack.
3) Resource exhaustion (CVE-ID: CVE-2023-50868)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation when processing DNSSEC related records. A remote attacker can trigger resource exhaustion by forcing the DNS server to query a specially crafted DNSSEC zone and perform a denial of service (DoS) attack.
4) Resource exhaustion (CVE-ID: CVE-2022-3204)
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 when processing a malicious delegation with a considerable number of non responsive nameservers. A remote attacker can trigger CPU high usage and perform a denial of service (DoS) attack.
The attack is known as "Non-Responsive Delegation Attack" (NRDelegation Attack).
5) Predictable from Observable State (CVE-ID: CVE-2022-30699)
The vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to the way Unbound handles delegation information expiration event. A remote attacker who controls a rouge DNS server can force the Unbound instance to cache incorrect information about domain delegation and permanently poison the DNS cache, e.g. perform the "ghost domain names" attack.
The attack is perform when Unbound is queried for a rogue domain name, which cached delegation information is about to expire. The rogue nameserver delays the response until the cached delegation information expires. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries.
6) Predictable from Observable State (CVE-ID: CVE-2022-30698)
The vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to the way Unbound handles delegation information expiration event. A remote attacker who controls a rouge DNS server can force the Unbound instance to cache incorrect information about subdomain delegation and permanently poison the DNS cache, e.g. perform the "ghost domain names" attack.
The attack is carried out when Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation.7) Cross-site request forgery (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to usage of a very short anti-CSRF token. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
8) Resource exhaustion (CVE-ID: CVE-2024-2511)
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.
9) Resource management error (CVE-ID: CVE-2024-4603)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when checking DSA keys and parameters. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
10) Use-after-free (CVE-ID: CVE-2024-4741)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the SSL_free_buffers() function. A remote attacker can trigger a use-after-free error and perform a denial of service (DoS) attack.
Note, the vulnerability affects only applications that call the vulnerable function.
11) Race condition (CVE-ID: CVE-2024-6387)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in portable version of sshd. A remote non-authenticated attacker can send a series of requests in order to trigger a race condition and execute arbitrary code on the system.
12) Information disclosure (CVE-ID: CVE-2024-39894)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due a logic error in ObscureKeystrokeTiming implementation within the ssh client. A local user with ability to passively observe SSH sessions can recover sensitive input, such as password for the su or sudo programs.
Remediation
Install update from vendor's website.