RubyGems up to 3.0.2 API Response GemcutterUtilities#with_response Escape Sequence injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in RubyGems up to 3.0.2. Affected is the function Gem::GemcutterUtilities#with_response of the component API Response Handler. This manipulation as part of Escape Sequence causes injection. This vulnerability is tracked as CVE-2019-8323. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in RubyGems up to 3.0.2 (Programming Language Software) and classified as critical. Affected by this vulnerability is the function Gem::GemcutterUtilities#with_response of the component API Response Handler. The manipulation as part of a Escape Sequence leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Gem::GemcutterUtilities#with_response may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur.

The bug was discovered 03/05/2019. The weakness was disclosed 06/17/2019 (Website). The advisory is shared at lists.opensuse.org. This vulnerability is known as CVE-2019-8323 since 02/13/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1055 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 104 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176762 (Debian Security Update for ruby2.1 (DLA 1735-1)).

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

The entries VDB-136162, VDB-136595, VDB-136596 and VDB-136598 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / 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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/13/2019 🔍
03/05/2019 +20 days 🔍
06/17/2019 +104 days 🔍
06/18/2019 +1 days 🔍
10/06/2023 +1571 days 🔍

Sourcesinfo

Advisory: DLA 2330-1
Status: Confirmed

CVE: CVE-2019-8323 (🔍)
GCVE (CVE): GCVE-0-2019-8323
GCVE (VulDB): GCVE-100-136597
OSVDB: - RubyGems Gem::GemcutterUtilities#with_response function security bypass

See also: 🔍

Entryinfo

Created: 06/18/2019 09:30
Updated: 10/06/2023 07:56
Changes: 06/18/2019 09:30 (61), 06/25/2020 09:55 (1), 10/06/2023 07:56 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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