CVE-2018-12435

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Botan versión 2.5.0 hasta 2.6.0 anterior a 2.7.0, permite un ataque de canal lateral de memoria caché en firmas ECDSA, también se conoce como Problema del Retorno de Número Oculto o ROHNP, relacionado con los archivos dsa/dsa.cpp, ec_group/ec_group.cpp, y ecdsa/ecdsa.cpp. Para descubrir una clave ECDSA, el atacante requiere acceso a la máquina local o a una máquina virtual diferente en el mismo host físico.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-06-14 CVE Reserved
2018-06-15 CVE Published
2023-06-08 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (3)

URL	Tag	Source
https://botan.randombit.net/security.html	Third Party Advisory

URL	Date	SRC
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem	2024-08-05

URL	Date	SRC
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3	2018-08-22

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Botan Project Search vendor "Botan Project"		Botan Search vendor "Botan Project" for product "Botan"				>= 2.5.0 <= 2.7.0 Search vendor "Botan Project" for product "Botan" and version " >= 2.5.0 <= 2.7.0"		-		Affected