VDB-126929 · CVE-2018-16621 · GCVE-0-2018-16621

Sonatype Nexus Repository Manager up to 3.13 Java Expression Language code injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Sonatype Nexus Repository Manager up to 3.13. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Java Expression Language Handler. The manipulation leads to code injection. This vulnerability is traded as CVE-2018-16621. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Sonatype Nexus Repository Manager up to 3.13. This issue affects an unknown code block of the component Java Expression Language Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Sonatype Nexus Repository Manager before 3.14 allows Java Expression Language Injection.

The bug was discovered 10/17/2018. The weakness was shared 11/15/2018 (Website). The advisory is shared at support.sonatype.com. The identification of this vulnerability is CVE-2018-16621 since 09/06/2018. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 3.14 eliminates this vulnerability.

The entries VDB-126928 and VDB-126927 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Sonatype

Name

Nexus Repository Manager

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nexus Repository Manager 3.14

Timelineinfo

09/06/2018 🔍
10/17/2018 +41 days 🔍
11/15/2018 +29 days 🔍
11/15/2018 +0 days 🔍
11/16/2018 +1 days 🔍
04/13/2020 +514 days 🔍

Sourcesinfo

Advisory: support.sonatype.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-16621 (🔍)
GCVE (CVE): GCVE-0-2018-16621
GCVE (VulDB): GCVE-100-126929
See also: 🔍

Entryinfo

Created: 11/16/2018 08:07
Updated: 04/13/2020 16:21
Changes: 11/16/2018 08:07 (59), 04/13/2020 16:21 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.