VDB-110336 · CVE-2017-17459 · Bug 1071709

Fossil up to 2.3 SSH Sync Protocol http_transport.c Hostname command injection

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7.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Fossil up to 2.3. The affected element is an unknown function of the file http_transport.c of the component SSH Sync Protocol. Such manipulation as part of Hostname leads to command injection. This vulnerability is documented as CVE-2017-17459. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Fossil up to 2.3 and classified as critical. Affected by this issue is some unknown functionality of the file http_transport.c of the component SSH Sync Protocol. The manipulation as part of a Hostname leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

http_transport.c in Fossil before 2.4, when the SSH sync protocol is used, allows user-assisted remote attackers to execute arbitrary commands via an ssh URL with an initial dash character in the hostname, a related issue to CVE-2017-9800, CVE-2017-12836, CVE-2017-12976, CVE-2017-14176, CVE-2017-16228, CVE-2017-1000116, and CVE-2017-1000117.

The bug was discovered 12/07/2017. The weakness was released 12/07/2017 as Bug 1071709 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.opensuse.org. This vulnerability is handled as CVE-2017-17459 since 12/07/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability scanner Nessus provides a plugin with the ID 105245 (openSUSE Security Update : fossil (openSUSE-2017-1365)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170606 (OpenSUSE Security Update for fossil (openSUSE-SU-2017:3271-1)).

Upgrading to version 2.4 eliminates this vulnerability. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105245). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Fossil

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / 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

Nessus ID: 105245
Nessus Name: openSUSE Security Update : fossil (openSUSE-2017-1365)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Fossil 2.4

Timelineinfo

12/07/2017 🔍
12/07/2017 +0 days 🔍
12/07/2017 +0 days 🔍
12/07/2017 +0 days 🔍
12/07/2017 +0 days 🔍
12/12/2017 +5 days 🔍
12/14/2017 +2 days 🔍
12/12/2019 +728 days 🔍

Sourcesinfo

Advisory: Bug 1071709
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-17459 (🔍)
GCVE (CVE): GCVE-0-2017-17459
GCVE (VulDB): GCVE-100-110336

Entryinfo

Created: 12/07/2017 23:34
Updated: 12/12/2019 19:56
Changes: 12/07/2017 23:34 (71), 12/12/2019 19:56 (3)
Complete: 🔍
Cache ID: 216:DEF:103

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