VDB-100616 · CVE-2017-8283 · BID 98064

dpkg up to 1.8.23 dpkg-source path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in dpkg up to 1.8.23. Affected is an unknown function of the component dpkg-source. Such manipulation leads to path traversal. This vulnerability is documented as CVE-2017-8283. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in dpkg up to 1.8.23 and classified as critical. Affected by this issue is an unknown code block of the component dpkg-source. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

dpkg-source in dpkg through 1.8.23 is able to use a non-GNU patch program and does not offer a protection mechanism for blank-indented diff hunks, which allows remote attackers to conduct directory traversal attacks via a crafted Debian source package, as demonstrated by use of dpkg-source on NetBSD.

The bug was discovered 04/20/2017. The weakness was released 04/26/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2017-8283 since 04/25/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 6 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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98064†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
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

04/20/2017 🔍
04/20/2017 +0 days 🔍
04/25/2017 +5 days 🔍
04/26/2017 +1 days 🔍
04/26/2017 +0 days 🔍
04/26/2017 +0 days 🔍
12/21/2020 +1335 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Guillem Jover
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8283 (🔍)
GCVE (CVE): GCVE-0-2017-8283
GCVE (VulDB): GCVE-100-100616
SecurityFocus: 98064 - dpkg CVE-2017-8283 Directory Traversal Vulnerability
OSVDB: - CVE-2017-8283 - Debian - Dpkg - High

Entryinfo

Created: 04/26/2017 23:29
Updated: 12/21/2020 15:14
Changes: 04/26/2017 23:29 (57), 09/21/2020 15:41 (5), 12/21/2020 15:14 (2)
Complete: 🔍
Cache ID: 216:BBA:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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