cURL/libcurl 7.x < 7.47.0 Multiple Vulnerabilities

Medium Nessus Network Monitor Plugin ID 9760

Synopsis

The host is running a version of cURL/libcurl that is vulnerable to multiple attack vectors.

Description

Versions of cURL and libcurl prior to 7.47.0 are affected by multiple vulnerabilities :

- A flaw exists that allows traversing outside of a restricted path. The issue is due to the program not properly sanitizing colon characters, specifically path traversal style attacks (e.g. '../') supplied via file names. With a specially crafted file name, a context-dependent attacker can write arbitrary files. (CVE-2016-0754)
- A flaw exists in the 'ConnectionExists()' function in 'lib/url.c' that is triggered as credentials are not properly compared in proxy NTLM authentication. This may allow a remote attacker to reuse connections. (CVE-2016-0755)

Solution

Upgrade to cURL/libcurl 7.47.0 or later.

See Also

http://curl.haxx.se/docs/adv_20160127B.html

http://curl.haxx.se/CVE-2016-0754.patch

https://curl.haxx.se/changes.html#7_47_0

Plugin Details

Severity: Medium

ID: 9760

File Name: 9760.prm

Family: Web Clients

Published: 2016/11/11

Modified: 2016/11/23

Dependencies: 9772

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSSv3

Base Score: 5.3

Temporal Score: 5

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:haxx:curl

Patch Publication Date: 2016/01/27

Vulnerability Publication Date: 2016/01/27

Reference Information

CVE: CVE-2016-0754, CVE-2016-0755

BID: 82298, 82307

OSVDB: 133666, 133679