open5gs v2.6.4 is vulnerable to Buffer Overflow. via /lib/core/abts.c.

Open5GS v2.6.4 is vulnerable to Buffer Overflow. via /lib/pfcp/context.c.

A weakness has been identified in Open5GS up to 2.7.6. This issue affects the function sgwcs5chandlecreatesessionresponse of the component SGW-C. Executing a manipulation can lead to memory corruption. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is an unknown function of the file /src/mme/esm-build.c of the component MME. The manipulation leads to memory corruption. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

A request-validation issue was discovered in Open5GS 2.1.3 through 2.2.x before 2.2.1. The WebUI component allows an unauthenticated user to use a crafted HTTP API request to create, read, update, or delete entries in the subscriber database. For example, new administrative users can be added. The issue occurs because Express is not set up to require authentication.

Open5GS 2.1.3 listens on 0.0.0.0:3000 and has a default password of 1423 for the admin account.

Reachable Assertion vulnerability in Open5GS up to version 2.7.6 allows attackers with connectivity to the NRF to cause a denial of service. An SBI request that deletes the NRF's own registry causes a check that ends up crashing the NRF process and renders the discovery service unavailable.

Reachable Assertion vulnerability in Open5GS up to version 2.7.6 allows attackers with connectivity to the NRF to cause a denial of service. This is achieved by sending the creation of an NF with an invalid type via SBI and then requesting its data. The NRF executes a check that crashes the process, leaving the discovery service unresponsive.

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a Path Switch Request message missing a required MMEUES1APID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a UE Context Modification Response message missing a required MMEUES1APID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send an S1Setup Request message missing a required Global eNB ID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a UE Capability Info Indication message missing a required MMEUES1APID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a UE Context Release Complete message missing a required MMEUES1APID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send an S1Setup Request message missing a required Supported TAs field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a UE Context Modification Failure message missing a required MMEUES1APID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MMEUES1APID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send an Initial UE Message missing a required NASPDU field to repeatedly crash the MME, resulting in denial of service.

A reachable assertion in the nasepssendemmtoesm function of Open5GS <= 2.6.4 allows attackers to cause a Denial of Service (DoS) via a crafted NGAP packet.

In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.

A missing length check in ogspfcpsubnetadd function from PFCP library, used by both smf and upf in open5gs 2.7.2 and earlier, allows a local attacker to cause a Buffer Overflow by changing the session.dnn field with a value with length greater than 101.

An issue was discovered in open5gs v2.6.6. SIGPIPE can be used to crash AMF.

Open5GS before 2.7.1 is vulnerable to a reachable assertion that can cause an AMF crash via NAS messages from a UE: gmmstateauthentication in amf/gmm-sm.c for != OGSERROR.

An issue in Open 5GS v.2.7.1 allows a remote attacker to cause a denial of service via the Network Function Virtualizations (NFVs) such as the User Plane Function (UPF) and the Session Management Function (SMF), The Packet Data Unit (PDU) session establishment process.

A reachable assertion in the ogsnasemmdecode function of Open5GS v2.7.0 allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet with a zero-length EMM message length.

A reachable assertion in the oainas5gmmdecode function of Open5GS <= 2.6.4 allows attackers to cause a Denial of Service (DoS) via a crafted NGAP packet.

A reachable assertion in the amfuesetsuci function of Open5GS <= 2.6.4 allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet.

A reachable assertion in the mmeuefindbyimsi function of Open5GS <= 2.6.4 allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet.

Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a UE Context Release Request message missing a required MMEUES1APID field to repeatedly crash the MME, resulting in denial of service.

Open5GS MME versions <= 2.6.4 contain a reachable assertion in the UE Context Release Request packet handler. A packet containing an invalid MMEUES1APID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.

An issue in Open5GS v.2.7.2 allows a remote attacker to cause a denial of service via the ogsdbiauthinfo function in lib/dbi/subscription.c file.