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Secunia Security Advisory 43948

Secunia Security Advisory 43948
Posted Apr 9, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A security issue has been reported in tinyproxy, which can be exploited by malicious people to bypass certain security restrictions.

tags | advisory
SHA-256 | 276ff43d0011456dd6cd9799a0cb06d638f8fb80fbd1c984fcbef3412f12ae2c

Secunia Security Advisory 43948

Change Mirror Download
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Q1 Factsheets released:

http://secunia.com/resources/factsheets/2011_vendor/


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TITLE:
tinyproxy Netmask Generation ACL Bypass Security Issue

SECUNIA ADVISORY ID:
SA43948

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43948/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43948

RELEASE DATE:
2011-04-09

DISCUSS ADVISORY:
http://secunia.com/advisories/43948/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/43948/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43948

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in tinyproxy, which can be
exploited by malicious people to bypass certain security
restrictions.

The security issue is caused due to an error within the netmask
generation, which can be exploited to bypass ACL restrictions if the
configuration contains an "Allow" statement using IP ranges.

The security issue is reported in version 1.8.2. Other versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
PhobosK

ORIGINAL ADVISORY:
https://banu.com/bugzilla/show_bug.cgi?id=90
https://banu.com/cgit/tinyproxy/diff/?id=e8426f6662dc467bd1d827100481b95d9a4a23e4

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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