CVE-2015-7575 : Détail

CVE-2015-7575

5.9
/
MEDIUM
0.29%V3
Network
2016-01-09 01:00 +00:00
2018-01-15 09:57 +00:00

Alerte pour un CVE

Restez informé de toutes modifications pour un CVE spécifique.
Gestion des alertes

Descriptions

Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision.

Informations

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-19 Category : Data Processing Errors
Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information.

Metrics

Metric Score Sévérité CVSS Vecteur Source
V3.0 5.9 MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers).

Attack Complexity

This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability.

High

A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.

User Interaction

This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Unchanged

An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same.

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

None

There is no loss of integrity within the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

None

There is no impact to availability within the impacted component.

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability.

Environmental Metrics

[email protected]
V2 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N [email protected]

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

EPSS Score

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

EPSS Percentile

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

Products Mentioned

Configuraton 0

Mozilla>>Network_security_services >> Version To (including) 3.20.1

Configuraton 0

Opensuse>>Leap >> Version 42.1

Opensuse>>Opensuse >> Version 13.1

Opensuse>>Opensuse >> Version 13.2

Configuraton 0

Mozilla>>Firefox_esr >> Version 38.0

Mozilla>>Firefox_esr >> Version 38.0.1

Mozilla>>Firefox_esr >> Version 38.0.5

Mozilla>>Firefox_esr >> Version 38.1.0

Mozilla>>Firefox_esr >> Version 38.1.1

Mozilla>>Firefox_esr >> Version 38.2.0

Mozilla>>Firefox_esr >> Version 38.2.1

Mozilla>>Firefox_esr >> Version 38.3.0

Mozilla>>Firefox_esr >> Version 38.4.0

Mozilla>>Firefox_esr >> Version 38.5.0

Mozilla>>Firefox_esr >> Version 38.5.1

Configuraton 0

Canonical>>Ubuntu_linux >> Version 14.04

Canonical>>Ubuntu_linux >> Version 15.04

Canonical>>Ubuntu_linux >> Version 15.10

Configuraton 0

Mozilla>>Firefox >> Version To (including) 43.0.1

References

http://www.debian.org/security/2016/dsa-3688
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.debian.org/security/2016/dsa-3457
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.debian.org/security/2016/dsa-3491
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.securitytracker.com/id/1036467
Tags : vdb-entry, x_refsource_SECTRACK
https://security.gentoo.org/glsa/201701-46
Tags : vendor-advisory, x_refsource_GENTOO
http://www.ubuntu.com/usn/USN-2884-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.securityfocus.com/bid/79684
Tags : vdb-entry, x_refsource_BID
http://www.debian.org/security/2016/dsa-3465
Tags : vendor-advisory, x_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2016:1430
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-0049.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.debian.org/security/2016/dsa-3437
Tags : vendor-advisory, x_refsource_DEBIAN
http://rhn.redhat.com/errata/RHSA-2016-0053.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.ubuntu.com/usn/USN-2904-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.debian.org/security/2016/dsa-3436
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2866-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.securityfocus.com/bid/91787
Tags : vdb-entry, x_refsource_BID
http://rhn.redhat.com/errata/RHSA-2016-0055.html
Tags : vendor-advisory, x_refsource_REDHAT
https://security.gentoo.org/glsa/201801-15
Tags : vendor-advisory, x_refsource_GENTOO
http://rhn.redhat.com/errata/RHSA-2016-0054.html
Tags : vendor-advisory, x_refsource_REDHAT
https://security.gentoo.org/glsa/201706-18
Tags : vendor-advisory, x_refsource_GENTOO
http://www.ubuntu.com/usn/USN-2864-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://rhn.redhat.com/errata/RHSA-2016-0056.html
Tags : vendor-advisory, x_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2016-0050.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.debian.org/security/2016/dsa-3458
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2865-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.securitytracker.com/id/1034541
Tags : vdb-entry, x_refsource_SECTRACK
http://www.ubuntu.com/usn/USN-2863-1
Tags : vendor-advisory, x_refsource_UBUNTU
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