nss_compat_ossl Multi-Keyword Mode input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.8$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in nss_compat_ossl. Affected by this issue is some unknown functionality of the component Multi-Keyword Mode. This manipulation causes input validation. The identification of this vulnerability is CVE-2015-3278. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in nss_compat_ossl (the affected version is unknown). It has been declared as very critical. Affected by this vulnerability is an unknown code of the component Multi-Keyword Mode. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The cipherstring parsing code in nss_compat_ossl while in multi-keyword mode does not match the expected set of ciphers for a given cipher combination, which allows attackers to have unspecified impact via unknown vectors.

The bug was discovered 08/14/2015. The weakness was shared 07/25/2017 as Bug 1238326 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2015-3278 since 04/10/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/01/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 711 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/10/2015 🔍
08/14/2015 +126 days 🔍
07/25/2017 +711 days 🔍
07/25/2017 +0 days 🔍
07/26/2017 +1 days 🔍
11/01/2019 +828 days 🔍

Sourcesinfo

Advisory: Bug 1238326
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-3278 (🔍)
GCVE (CVE): GCVE-0-2015-3278
GCVE (VulDB): GCVE-100-104479

Entryinfo

Created: 07/26/2017 10:11
Updated: 11/01/2019 08:52
Changes: 07/26/2017 10:11 (56), 11/01/2019 08:52 (2)
Complete: 🔍
Cache ID: 216::103

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